diff --git a/Modules/Core/files.cmake b/Modules/Core/files.cmake
index 9ea0347b08..eab67f18d2 100644
--- a/Modules/Core/files.cmake
+++ b/Modules/Core/files.cmake
@@ -1,322 +1,323 @@
 file(GLOB_RECURSE H_FILES RELATIVE "${CMAKE_CURRENT_SOURCE_DIR}" "${CMAKE_CURRENT_SOURCE_DIR}/include/*")
 
 set(CPP_FILES
   mitkCoreActivator.cpp
   mitkCoreObjectFactoryBase.cpp
   mitkCoreObjectFactory.cpp
   mitkCoreServices.cpp
   mitkException.cpp
 
   Algorithms/mitkBaseDataSource.cpp
   Algorithms/mitkClippedSurfaceBoundsCalculator.cpp
   Algorithms/mitkCompareImageDataFilter.cpp
   Algorithms/mitkCompositePixelValueToString.cpp
   Algorithms/mitkConvert2Dto3DImageFilter.cpp
   Algorithms/mitkDataNodeSource.cpp
   Algorithms/mitkExtractSliceFilter.cpp
   Algorithms/mitkExtractSliceFilter2.cpp
   Algorithms/mitkHistogramGenerator.cpp
   Algorithms/mitkImageChannelSelector.cpp
   Algorithms/mitkImageSliceSelector.cpp
   Algorithms/mitkImageSource.cpp
   Algorithms/mitkImageTimeSelector.cpp
   Algorithms/mitkImageToImageFilter.cpp
   Algorithms/mitkImageToSurfaceFilter.cpp
   Algorithms/mitkMultiComponentImageDataComparisonFilter.cpp
   Algorithms/mitkPlaneGeometryDataToSurfaceFilter.cpp
   Algorithms/mitkPointSetSource.cpp
   Algorithms/mitkPointSetToPointSetFilter.cpp
   Algorithms/mitkRGBToRGBACastImageFilter.cpp
   Algorithms/mitkSubImageSelector.cpp
   Algorithms/mitkSurfaceSource.cpp
   Algorithms/mitkSurfaceToImageFilter.cpp
   Algorithms/mitkSurfaceToSurfaceFilter.cpp
   Algorithms/mitkUIDGenerator.cpp
   Algorithms/mitkVolumeCalculator.cpp
   Algorithms/mitkTemporalJoinImagesFilter.cpp
 
   Controllers/mitkBaseController.cpp
   Controllers/mitkCallbackFromGUIThread.cpp
   Controllers/mitkCameraController.cpp
   Controllers/mitkCameraRotationController.cpp
   Controllers/mitkCrosshairManager.cpp
   Controllers/mitkLimitedLinearUndo.cpp
   Controllers/mitkOperationEvent.cpp
   Controllers/mitkPlanePositionManager.cpp
   Controllers/mitkProgressBar.cpp
   Controllers/mitkRenderingManager.cpp
   Controllers/mitkSliceNavigationController.cpp
   Controllers/mitkSliceNavigationHelper.cpp
   Controllers/mitkStatusBar.cpp
   Controllers/mitkStepper.cpp
   Controllers/mitkTestManager.cpp
   Controllers/mitkUndoController.cpp
   Controllers/mitkVerboseLimitedLinearUndo.cpp
   Controllers/mitkVtkLayerController.cpp
 
   DataManagement/mitkAnatomicalStructureColorPresets.cpp
   DataManagement/mitkArbitraryTimeGeometry.cpp
   DataManagement/mitkAbstractTransformGeometry.cpp
   DataManagement/mitkAnnotationProperty.cpp
   DataManagement/mitkApplicationCursor.cpp
   DataManagement/mitkApplyTransformMatrixOperation.cpp
   DataManagement/mitkBaseData.cpp
   DataManagement/mitkBaseGeometry.cpp
   DataManagement/mitkBaseProperty.cpp
   DataManagement/mitkChannelDescriptor.cpp
   DataManagement/mitkClippingProperty.cpp
   DataManagement/mitkColorProperty.cpp
   DataManagement/mitkDataNode.cpp
   DataManagement/mitkDataStorage.cpp
   DataManagement/mitkEnumerationProperty.cpp
   DataManagement/mitkFloatPropertyExtension.cpp
   DataManagement/mitkGeometry3D.cpp
   DataManagement/mitkGeometryData.cpp
   DataManagement/mitkGeometryTransformHolder.cpp
   DataManagement/mitkGroupTagProperty.cpp
   DataManagement/mitkGenericIDRelationRule.cpp
   DataManagement/mitkIdentifiable.cpp
   DataManagement/mitkImageAccessorBase.cpp
   DataManagement/mitkImageCaster.cpp
   DataManagement/mitkImageCastPart1.cpp
   DataManagement/mitkImageCastPart2.cpp
   DataManagement/mitkImageCastPart3.cpp
   DataManagement/mitkImageCastPart4.cpp
   DataManagement/mitkImage.cpp
   DataManagement/mitkImageDataItem.cpp
   DataManagement/mitkImageDescriptor.cpp
   DataManagement/mitkImageReadAccessor.cpp
   DataManagement/mitkImageStatisticsHolder.cpp
   DataManagement/mitkImageVtkAccessor.cpp
   DataManagement/mitkImageVtkReadAccessor.cpp
   DataManagement/mitkImageVtkWriteAccessor.cpp
   DataManagement/mitkImageWriteAccessor.cpp
   DataManagement/mitkIntPropertyExtension.cpp
   DataManagement/mitkIPersistenceService.cpp
   DataManagement/mitkIPropertyAliases.cpp
   DataManagement/mitkIPropertyDescriptions.cpp
   DataManagement/mitkIPropertyExtensions.cpp
   DataManagement/mitkIPropertyFilters.cpp
   DataManagement/mitkIPropertyOwner.cpp
   DataManagement/mitkIPropertyPersistence.cpp
   DataManagement/mitkIPropertyProvider.cpp
   DataManagement/mitkLandmarkProjectorBasedCurvedGeometry.cpp
   DataManagement/mitkLandmarkProjector.cpp
   DataManagement/mitkLevelWindow.cpp
   DataManagement/mitkLevelWindowManager.cpp
   DataManagement/mitkLevelWindowPreset.cpp
   DataManagement/mitkLevelWindowProperty.cpp
   DataManagement/mitkLine.cpp
   DataManagement/mitkLookupTable.cpp
   DataManagement/mitkLookupTableProperty.cpp
   DataManagement/mitkLookupTables.cpp # specializations of GenericLookupTable
   DataManagement/mitkMaterial.cpp
   DataManagement/mitkMemoryUtilities.cpp
   DataManagement/mitkModalityProperty.cpp
   DataManagement/mitkModifiedLock.cpp
   DataManagement/mitkNodePredicateAnd.cpp
   DataManagement/mitkNodePredicateBase.cpp
   DataManagement/mitkNodePredicateCompositeBase.cpp
   DataManagement/mitkNodePredicateData.cpp
   DataManagement/mitkNodePredicateDataType.cpp
   DataManagement/mitkNodePredicateDataUID.cpp
   DataManagement/mitkNodePredicateDimension.cpp
   DataManagement/mitkNodePredicateFirstLevel.cpp
   DataManagement/mitkNodePredicateFunction.cpp
   DataManagement/mitkNodePredicateGeometry.cpp
   DataManagement/mitkNodePredicateNot.cpp
   DataManagement/mitkNodePredicateOr.cpp
   DataManagement/mitkNodePredicateProperty.cpp
   DataManagement/mitkNodePredicateDataProperty.cpp
   DataManagement/mitkNodePredicateSource.cpp
   DataManagement/mitkNodePredicateSubGeometry.cpp
   DataManagement/mitkNumericConstants.cpp
   DataManagement/mitkPlaneGeometry.cpp
   DataManagement/mitkPlaneGeometryData.cpp
   DataManagement/mitkPlaneOperation.cpp
   DataManagement/mitkPlaneOrientationProperty.cpp
   DataManagement/mitkPointOperation.cpp
   DataManagement/mitkPointSet.cpp
   DataManagement/mitkPointSetShapeProperty.cpp
   DataManagement/mitkProperties.cpp
   DataManagement/mitkPropertyAliases.cpp
   DataManagement/mitkPropertyDescriptions.cpp
   DataManagement/mitkPropertyExtension.cpp
   DataManagement/mitkPropertyExtensions.cpp
   DataManagement/mitkPropertyFilter.cpp
   DataManagement/mitkPropertyFilters.cpp
   DataManagement/mitkPropertyKeyPath.cpp
   DataManagement/mitkPropertyList.cpp
   DataManagement/mitkPropertyListReplacedObserver.cpp
   DataManagement/mitkPropertyNameHelper.cpp
   DataManagement/mitkPropertyObserver.cpp
   DataManagement/mitkPropertyPersistence.cpp
   DataManagement/mitkPropertyPersistenceInfo.cpp
   DataManagement/mitkPropertyRelationRuleBase.cpp
   DataManagement/mitkProportionalTimeGeometry.cpp
   DataManagement/mitkRenderingModeProperty.cpp
   DataManagement/mitkResliceMethodProperty.cpp
   DataManagement/mitkRestorePlanePositionOperation.cpp
   DataManagement/mitkRotationOperation.cpp
   DataManagement/mitkScaleOperation.cpp
   DataManagement/mitkSlicedData.cpp
   DataManagement/mitkSlicedGeometry3D.cpp
   DataManagement/mitkSmartPointerProperty.cpp
   DataManagement/mitkStandaloneDataStorage.cpp
   DataManagement/mitkStringProperty.cpp
   DataManagement/mitkSurface.cpp
   DataManagement/mitkSurfaceOperation.cpp
   DataManagement/mitkSourceImageRelationRule.cpp
   DataManagement/mitkThinPlateSplineCurvedGeometry.cpp
   DataManagement/mitkTimeGeometry.cpp
   DataManagement/mitkTransferFunction.cpp
   DataManagement/mitkTransferFunctionInitializer.cpp
   DataManagement/mitkTransferFunctionProperty.cpp
   DataManagement/mitkTemporoSpatialStringProperty.cpp
   DataManagement/mitkUIDManipulator.cpp
   DataManagement/mitkVector.cpp
   DataManagement/mitkVectorProperty.cpp
   DataManagement/mitkVtkInterpolationProperty.cpp
   DataManagement/mitkVtkRepresentationProperty.cpp
   DataManagement/mitkVtkResliceInterpolationProperty.cpp
   DataManagement/mitkVtkScalarModeProperty.cpp
   DataManagement/mitkWeakPointerProperty.cpp
   DataManagement/mitkIPropertyRelations.cpp
   DataManagement/mitkPropertyRelations.cpp
 
   Interactions/mitkAction.cpp
   Interactions/mitkBindDispatcherInteractor.cpp
   Interactions/mitkDataInteractor.cpp
   Interactions/mitkDispatcher.cpp
   Interactions/mitkDisplayActionEventBroadcast.cpp
   Interactions/mitkDisplayActionEventFunctions.cpp
   Interactions/mitkDisplayActionEventHandler.cpp
   Interactions/mitkDisplayActionEventHandlerDesynchronized.cpp
   Interactions/mitkDisplayActionEventHandlerStd.cpp
   Interactions/mitkDisplayActionEventHandlerSynchronized.cpp
   Interactions/mitkDisplayCoordinateOperation.cpp
   Interactions/mitkEventConfig.cpp
   Interactions/mitkEventFactory.cpp
   Interactions/mitkEventRecorder.cpp
   Interactions/mitkEventStateMachine.cpp
   Interactions/mitkInteractionEventConst.cpp
   Interactions/mitkInteractionEvent.cpp
   Interactions/mitkInteractionEventHandler.cpp
   Interactions/mitkInteractionEventObserver.cpp
   Interactions/mitkInteractionKeyEvent.cpp
   Interactions/mitkInteractionPositionEvent.cpp
   Interactions/mitkInteractionSchemeSwitcher.cpp
   Interactions/mitkInternalEvent.cpp
   Interactions/mitkMouseDoubleClickEvent.cpp
   Interactions/mitkMouseMoveEvent.cpp
   Interactions/mitkMousePressEvent.cpp
   Interactions/mitkMouseReleaseEvent.cpp
   Interactions/mitkMouseWheelEvent.cpp
   Interactions/mitkPointSetDataInteractor.cpp
   Interactions/mitkSinglePointDataInteractor.cpp
   Interactions/mitkStateMachineAction.cpp
   Interactions/mitkStateMachineCondition.cpp
   Interactions/mitkStateMachineContainer.cpp
   Interactions/mitkStateMachineState.cpp
   Interactions/mitkStateMachineTransition.cpp
   Interactions/mitkVtkEventAdapter.cpp
   Interactions/mitkVtkInteractorStyle.cxx
   Interactions/mitkXML2EventParser.cpp
 
   IO/mitkAbstractFileIO.cpp
   IO/mitkAbstractFileReader.cpp
   IO/mitkAbstractFileWriter.cpp
   IO/mitkCustomMimeType.cpp
   IO/mitkFileReader.cpp
   IO/mitkFileReaderRegistry.cpp
   IO/mitkFileReaderSelector.cpp
   IO/mitkFileReaderWriterBase.cpp
   IO/mitkFileWriter.cpp
   IO/mitkFileWriterRegistry.cpp
   IO/mitkFileWriterSelector.cpp
   IO/mitkGeometry3DToXML.cpp
   IO/mitkIFileIO.cpp
   IO/mitkIFileReader.cpp
   IO/mitkIFileWriter.cpp
   IO/mitkGeometryDataReaderService.cpp
   IO/mitkGeometryDataWriterService.cpp
   IO/mitkImageGenerator.cpp
   IO/mitkImageVtkLegacyIO.cpp
   IO/mitkImageVtkXmlIO.cpp
   IO/mitkIMimeTypeProvider.cpp
   IO/mitkIOConstants.cpp
   IO/mitkIOMimeTypes.cpp
   IO/mitkIOUtil.cpp
   IO/mitkItkImageIO.cpp
   IO/mitkItkLoggingAdapter.cpp
   IO/mitkLegacyFileReaderService.cpp
   IO/mitkLegacyFileWriterService.cpp
   IO/mitkLocaleSwitch.cpp
   IO/mitkLog.cpp
   IO/mitkMimeType.cpp
   IO/mitkMimeTypeProvider.cpp
   IO/mitkOperation.cpp
   IO/mitkPixelType.cpp
   IO/mitkPointSetReaderService.cpp
   IO/mitkPointSetWriterService.cpp
   IO/mitkProportionalTimeGeometryToXML.cpp
   IO/mitkRawImageFileReader.cpp
   IO/mitkStandardFileLocations.cpp
   IO/mitkSurfaceStlIO.cpp
   IO/mitkSurfaceVtkIO.cpp
   IO/mitkSurfaceVtkLegacyIO.cpp
   IO/mitkSurfaceVtkXmlIO.cpp
   IO/mitkUtf8Util.cpp
   IO/mitkVtkLoggingAdapter.cpp
   IO/mitkPreferenceListReaderOptionsFunctor.cpp
   IO/mitkIOMetaInformationPropertyConstants.cpp
 
   Rendering/mitkAbstractAnnotationRenderer.cpp
   Rendering/mitkAnnotationUtils.cpp
   Rendering/mitkBaseRenderer.cpp
+  Rendering/mitkBaseRendererHelper.cpp
   #Rendering/mitkGLMapper.cpp Moved to deprecated LegacyGL Module
   Rendering/mitkGradientBackground.cpp
   Rendering/mitkImageVtkMapper2D.cpp
   Rendering/mitkMapper.cpp
   Rendering/mitkAnnotation.cpp
   Rendering/mitkPlaneGeometryDataMapper2D.cpp
   Rendering/mitkPlaneGeometryDataVtkMapper3D.cpp
   Rendering/mitkPointSetVtkMapper2D.cpp
   Rendering/mitkPointSetVtkMapper3D.cpp
   Rendering/mitkRenderWindowBase.cpp
   Rendering/mitkRenderWindow.cpp
   Rendering/mitkRenderWindowFrame.cpp
   #Rendering/mitkSurfaceGLMapper2D.cpp Moved to deprecated LegacyGL Module
   Rendering/mitkSurfaceVtkMapper2D.cpp
   Rendering/mitkSurfaceVtkMapper3D.cpp
   Rendering/mitkVtkEventProvider.cpp
   Rendering/mitkVtkMapper.cpp
   Rendering/mitkVtkPropRenderer.cpp
   Rendering/mitkVtkWidgetRendering.cpp
   Rendering/vtkMitkLevelWindowFilter.cpp
   Rendering/vtkMitkRectangleProp.cpp
   Rendering/vtkMitkRenderProp.cpp
   Rendering/vtkMitkThickSlicesFilter.cpp
   Rendering/vtkNeverTranslucentTexture.cpp
 )
 
 set(RESOURCE_FILES
 Interactions/globalConfig.xml
 Interactions/DisplayInteraction.xml
 Interactions/DisplayConfigMITKBase.xml
 Interactions/DisplayConfigPACSBase.xml
 Interactions/DisplayConfigCrosshair.xml
 Interactions/DisplayConfigRotation.xml
 Interactions/DisplayConfigActivateCoupling.xml
 Interactions/DisplayConfigSwivel.xml
 Interactions/DisplayConfigPACSPan.xml
 Interactions/DisplayConfigPACSScroll.xml
 Interactions/DisplayConfigPACSZoom.xml
 Interactions/DisplayConfigPACSLevelWindow.xml
 Interactions/DisplayConfigBlockLMB.xml
 Interactions/PointSet.xml
 Interactions/PointSetConfig.xml
 
 mitkLevelWindowPresets.xml
 mitkAnatomicalStructureColorPresets.xml
 )
diff --git a/Modules/Core/include/mitkBaseRendererHelper.h b/Modules/Core/include/mitkBaseRendererHelper.h
new file mode 100644
index 0000000000..ac3502f299
--- /dev/null
+++ b/Modules/Core/include/mitkBaseRendererHelper.h
@@ -0,0 +1,31 @@
+/*============================================================================
+
+The Medical Imaging Interaction Toolkit (MITK)
+
+Copyright (c) German Cancer Research Center (DKFZ)
+All rights reserved.
+
+Use of this source code is governed by a 3-clause BSD license that can be
+found in the LICENSE file.
+
+============================================================================*/
+
+#ifndef MITKBASERENDERERHELPER_H
+#define MITKBASERENDERERHELPER_H
+
+#include <mitkBaseRenderer.h>
+#include <mitkTimeGeometry.h>
+
+namespace mitk
+{
+  namespace BaseRendererHelper
+  {
+    /*
+     * \brief
+     */
+    MITKCORE_EXPORT bool IsRendererAlignedWithSegmentation(BaseRenderer* renderer, const TimeGeometry* timeGeometry);
+
+  } // namespace BaseRendererHelper
+} // namespace mitk
+
+#endif // MITKBASERENDERERHELPER_H
diff --git a/Modules/Core/src/Rendering/mitkBaseRendererHelper.cpp b/Modules/Core/src/Rendering/mitkBaseRendererHelper.cpp
new file mode 100644
index 0000000000..98a3cca372
--- /dev/null
+++ b/Modules/Core/src/Rendering/mitkBaseRendererHelper.cpp
@@ -0,0 +1,62 @@
+/*============================================================================
+
+The Medical Imaging Interaction Toolkit (MITK)
+
+Copyright (c) German Cancer Research Center (DKFZ)
+All rights reserved.
+
+Use of this source code is governed by a 3-clause BSD license that can be
+found in the LICENSE file.
+
+============================================================================*/
+
+#include "mitkBaseRendererHelper.h"
+
+#include <mitkSliceNavigationHelper.h>
+
+bool mitk::BaseRendererHelper::IsRendererAlignedWithSegmentation(BaseRenderer* renderer, const TimeGeometry* timeGeometry)
+{
+  const BaseGeometry* renderWindowGeometry = renderer->GetCurrentWorldGeometry();
+
+  if (nullptr == renderWindowGeometry || nullptr == timeGeometry)
+  {
+    return false;
+  }
+
+  auto viewDirection = renderer->GetSliceNavigationController()->GetViewDirection();
+  TimeGeometry::Pointer orientedTimeGeometry;
+  switch (viewDirection)
+  {
+  case mitk::SliceNavigationController::Original:
+    break;
+  case mitk::SliceNavigationController::Axial:
+  {
+    orientedTimeGeometry = SliceNavigationHelper::CreateOrientedTimeGeometry(
+      timeGeometry, PlaneGeometry::Axial, false, false, true);
+    break;
+  }
+  case mitk::SliceNavigationController::Coronal:
+  {
+    orientedTimeGeometry = SliceNavigationHelper::CreateOrientedTimeGeometry(
+      timeGeometry, PlaneGeometry::Coronal, false, true, false);
+    break;
+  }
+  case mitk::SliceNavigationController::Sagittal:
+  {
+    orientedTimeGeometry = SliceNavigationHelper::CreateOrientedTimeGeometry(
+      timeGeometry, PlaneGeometry::Sagittal, true, true, false);
+    break;
+  }
+  }
+
+  if (nullptr == orientedTimeGeometry)
+  {
+    return false;
+  }
+
+  const BaseGeometry* workingImageBaseGeometry = orientedTimeGeometry->GetGeometryForTimeStep(0);
+  bool geometryIsEqual =
+    Equal(*workingImageBaseGeometry->GetBoundingBox(), *renderWindowGeometry->GetBoundingBox(), eps, true);
+
+  return geometryIsEqual;
+}
\ No newline at end of file
diff --git a/Modules/QtWidgets/src/QmitkRenderWindow.cpp b/Modules/QtWidgets/src/QmitkRenderWindow.cpp
index 6372b632bc..af81ae89ec 100644
--- a/Modules/QtWidgets/src/QmitkRenderWindow.cpp
+++ b/Modules/QtWidgets/src/QmitkRenderWindow.cpp
@@ -1,489 +1,492 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.
 
 ============================================================================*/
 
 #include "QmitkRenderWindow.h"
 
 #include "mitkInteractionKeyEvent.h"
 #include "mitkInternalEvent.h"
 #include "mitkMouseDoubleClickEvent.h"
 #include "mitkMouseMoveEvent.h"
 #include "mitkMousePressEvent.h"
 #include "mitkMouseReleaseEvent.h"
 #include "mitkMouseWheelEvent.h"
 #include <mitkStatusBar.h>
 
 #include <QCursor>
 #include <QDragEnterEvent>
 #include <QDropEvent>
 #include <QKeyEvent>
 #include <QMouseEvent>
 #include <QResizeEvent>
 #include <QSurfaceFormat>
 #include <QTimer>
 #include <QWheelEvent>
 #include <QWindow>
 
 #include "QmitkMimeTypes.h"
 #include "QmitkRenderWindowMenu.h"
 
 QmitkRenderWindow::QmitkRenderWindow(QWidget *parent, const QString &name, mitk::VtkPropRenderer *)
   : QVTKOpenGLNativeWidget(parent)
   , m_ResendQtEvents(true)
   , m_MenuWidget(nullptr)
   , m_MenuWidgetActivated(false)
   , m_LayoutIndex(QmitkRenderWindowMenu::LayoutIndex::AXIAL)
 {
   m_InternalRenderWindow = vtkSmartPointer<vtkGenericOpenGLRenderWindow>::New();
   m_InternalRenderWindow->SetMultiSamples(0);
   m_InternalRenderWindow->SetAlphaBitPlanes(0);
 
   setRenderWindow(m_InternalRenderWindow);
 
   Initialize(name.toStdString().c_str());
 
   setFocusPolicy(Qt::StrongFocus);
   setMouseTracking(true);
   QSizePolicy sizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
   setSizePolicy(sizePolicy);
 }
 
 QmitkRenderWindow::~QmitkRenderWindow()
 {
   Destroy(); // Destroy mitkRenderWindowBase
 }
 
 void QmitkRenderWindow::SetResendQtEvents(bool resend)
 {
   m_ResendQtEvents = resend;
 }
 
 void QmitkRenderWindow::SetLayoutIndex(QmitkRenderWindowMenu::LayoutIndex layoutIndex)
 {
   m_LayoutIndex = layoutIndex;
   if (nullptr != m_MenuWidget)
   {
     m_MenuWidget->SetLayoutIndex(layoutIndex);
   }
 }
 
 QmitkRenderWindowMenu::LayoutIndex QmitkRenderWindow::GetLayoutIndex()
 {
   if (nullptr != m_MenuWidget)
   {
     return m_MenuWidget->GetLayoutIndex();
   }
   else
   {
     return QmitkRenderWindowMenu::LayoutIndex::AXIAL;
   }
 }
 
 void QmitkRenderWindow::UpdateLayoutDesignList(QmitkRenderWindowMenu::LayoutDesign layoutDesign)
 {
   if (nullptr != m_MenuWidget)
   {
     m_MenuWidget->UpdateLayoutDesignList(layoutDesign);
   }
 }
 
 void QmitkRenderWindow::UpdateCrosshairVisibility(bool visible)
 {
   m_MenuWidget->UpdateCrosshairVisibility(visible);
 }
 
 void QmitkRenderWindow::UpdateCrosshairRotationMode(int mode)
 {
   m_MenuWidget->UpdateCrosshairRotationMode(mode);
 }
 
 void QmitkRenderWindow::ActivateMenuWidget(bool state)
 {
   if (nullptr == m_MenuWidget)
   {
     m_MenuWidget = new QmitkRenderWindowMenu(this, nullptr, m_Renderer);
     m_MenuWidget->SetLayoutIndex(m_LayoutIndex);
   }
 
   m_MenuWidgetActivated = state;
 
   if (m_MenuWidgetActivated)
   {
     connect(m_MenuWidget, &QmitkRenderWindowMenu::LayoutDesignChanged, this, &QmitkRenderWindow::LayoutDesignChanged);
     connect(m_MenuWidget, &QmitkRenderWindowMenu::ResetView, this, &QmitkRenderWindow::ResetView);
     connect(m_MenuWidget, &QmitkRenderWindowMenu::CrosshairVisibilityChanged, this, &QmitkRenderWindow::CrosshairVisibilityChanged);
     connect(m_MenuWidget, &QmitkRenderWindowMenu::CrosshairRotationModeChanged, this, &QmitkRenderWindow::CrosshairRotationModeChanged);
   }
   else
   {
     disconnect(m_MenuWidget, &QmitkRenderWindowMenu::LayoutDesignChanged, this, &QmitkRenderWindow::LayoutDesignChanged);
     disconnect(m_MenuWidget, &QmitkRenderWindowMenu::ResetView, this, &QmitkRenderWindow::ResetView);
     disconnect(m_MenuWidget, &QmitkRenderWindowMenu::CrosshairVisibilityChanged, this, &QmitkRenderWindow::CrosshairVisibilityChanged);
     disconnect(m_MenuWidget, &QmitkRenderWindowMenu::CrosshairRotationModeChanged, this, &QmitkRenderWindow::CrosshairRotationModeChanged);
 
     m_MenuWidget->hide();
   }
 }
 
 void QmitkRenderWindow::moveEvent(QMoveEvent *event)
 {
   QVTKOpenGLNativeWidget::moveEvent(event);
 
   // after a move the overlays need to be positioned
   emit moved();
 }
 
 void QmitkRenderWindow::showEvent(QShowEvent *event)
 {
   QVTKOpenGLNativeWidget::showEvent(event);
 
   // this singleshot is necessary to have the overlays positioned correctly after initial show
   // simple call of moved() is no use here!!
   QTimer::singleShot(0, this, SIGNAL(moved()));
 }
 
 bool QmitkRenderWindow::event(QEvent* e)
 {
   mitk::InteractionEvent::Pointer mitkEvent = nullptr;
   mitk::Point2D mousePosition;
   bool updateStatusBar = false;
   switch (e->type())
   {
     case QEvent::MouseMove:
     {
       auto me = static_cast<QMouseEvent *>(e);
       mousePosition = this->GetMousePosition(me);
       mitkEvent = mitk::MouseMoveEvent::New(m_Renderer, mousePosition, GetButtonState(me), GetModifiers(me));
       updateStatusBar = true;
       break;
     }
     case QEvent::MouseButtonPress:
     {
       auto me = static_cast<QMouseEvent *>(e);
       mitkEvent = mitk::MousePressEvent::New( m_Renderer, GetMousePosition(me), GetButtonState(me), GetModifiers(me), GetEventButton(me));
       break;
     }
     case QEvent::MouseButtonRelease:
     {
       auto me = static_cast<QMouseEvent *>(e);
       mitkEvent = mitk::MouseReleaseEvent::New( m_Renderer, GetMousePosition(me), GetButtonState(me), GetModifiers(me), GetEventButton(me));
       break;
     }
     case QEvent::MouseButtonDblClick:
     {
       auto me = static_cast<QMouseEvent *>(e);
       mitkEvent = mitk::MouseDoubleClickEvent::New( m_Renderer, GetMousePosition(me), GetButtonState(me), GetModifiers(me), GetEventButton(me));
       break;
     }
     case QEvent::Wheel:
     {
       auto we = static_cast<QWheelEvent *>(e);
       mousePosition = this->GetMousePosition(we);
       mitkEvent = mitk::MouseWheelEvent::New(m_Renderer, mousePosition, GetButtonState(we), GetModifiers(we), GetDelta(we));
       updateStatusBar = true;
       break;
     }
     case QEvent::KeyPress:
     {
       auto ke = static_cast<QKeyEvent*>(e);
       mitkEvent = mitk::InteractionKeyEvent::New(m_Renderer, GetKeyLetter(ke), GetModifiers(ke));
       break;
     }
     case QEvent::Resize:
     {
       if (nullptr != m_MenuWidget)
         m_MenuWidget->MoveWidgetToCorrectPos();
     }
     default:
     {
       break;
     }
   }
 
   if (mitkEvent != nullptr)
   {
     if (this->HandleEvent(mitkEvent.GetPointer())) {
       return m_ResendQtEvents ? false : true;
     }
   }
 
   if (updateStatusBar)
   {
     this->UpdateStatusBar(mousePosition);
   }
 
   return QVTKOpenGLNativeWidget::event(e);
 }
 
 void QmitkRenderWindow::enterEvent(QEvent *e)
 {
-  // TODO implement new event
-  QVTKOpenGLNativeWidget::enterEvent(e);
+  mitk::InternalEvent::Pointer internalEvent = mitk::InternalEvent::New(m_Renderer, nullptr, "EnterRenderWindow");
+
+  this->HandleEvent(internalEvent.GetPointer());
 
   if (nullptr != m_MenuWidget)
     m_MenuWidget->ShowMenu();
+
+  QVTKOpenGLNativeWidget::enterEvent(e);
 }
 
 void QmitkRenderWindow::leaveEvent(QEvent *e)
 {
   auto statusBar = mitk::StatusBar::GetInstance();
   statusBar->DisplayGreyValueText("");
 
-  mitk::InternalEvent::Pointer internalEvent = mitk::InternalEvent::New(this->m_Renderer, nullptr, "LeaveRenderWindow");
+  mitk::InternalEvent::Pointer internalEvent = mitk::InternalEvent::New(m_Renderer, nullptr, "LeaveRenderWindow");
 
   this->HandleEvent(internalEvent.GetPointer());
 
   if (nullptr != m_MenuWidget)
     m_MenuWidget->HideMenu();
 
   QVTKOpenGLNativeWidget::leaveEvent(e);
 }
 
 void QmitkRenderWindow::resizeGL(int w, int h)
 {
   QVTKOpenGLNativeWidget::resizeGL(w, h);
   mitk::RenderingManager::GetInstance()->ForceImmediateUpdate(renderWindow());
 }
 
 void QmitkRenderWindow::dragEnterEvent(QDragEnterEvent *event)
 {
   if (event->mimeData()->hasFormat("application/x-mitk-datanodes"))
   {
     event->accept();
   }
 }
 
 void QmitkRenderWindow::dropEvent(QDropEvent *event)
 {
   QList<mitk::DataNode *> dataNodeList = QmitkMimeTypes::ToDataNodePtrList(event->mimeData());
   if (!dataNodeList.empty())
   {
     emit NodesDropped(this, dataNodeList.toVector().toStdVector());
   }
 }
 
 void QmitkRenderWindow::DeferredHideMenu()
 {
   MITK_DEBUG << "QmitkRenderWindow::DeferredHideMenu";
 
   if (nullptr != m_MenuWidget)
   {
     m_MenuWidget->HideMenu();
   }
 }
 
 mitk::Point2D QmitkRenderWindow::GetMousePosition(QMouseEvent *me) const
 {
   mitk::Point2D point;
   point[0] = me->x();
   // We need to convert the y component, as the display and vtk have other definitions for the y direction
   point[1] = m_Renderer->GetSizeY() - me->y();
   return point;
 }
 
 mitk::Point2D QmitkRenderWindow::GetMousePosition(QWheelEvent *we) const
 {
   mitk::Point2D point;
   point[0] = we->x();
   // We need to convert the y component, as the display and vtk have other definitions for the y direction
   point[1] = m_Renderer->GetSizeY() - we->y();
   return point;
 }
 
 mitk::InteractionEvent::MouseButtons QmitkRenderWindow::GetEventButton(QMouseEvent *me) const
 {
   mitk::InteractionEvent::MouseButtons eventButton;
   switch (me->button())
   {
   case Qt::LeftButton:
     eventButton = mitk::InteractionEvent::LeftMouseButton;
     break;
   case Qt::RightButton:
     eventButton = mitk::InteractionEvent::RightMouseButton;
     break;
   case Qt::MidButton:
     eventButton = mitk::InteractionEvent::MiddleMouseButton;
     break;
   default:
     eventButton = mitk::InteractionEvent::NoButton;
     break;
   }
   return eventButton;
 }
 
 mitk::InteractionEvent::MouseButtons QmitkRenderWindow::GetButtonState(QMouseEvent *me) const
 {
   mitk::InteractionEvent::MouseButtons buttonState = mitk::InteractionEvent::NoButton;
 
   if (me->buttons() & Qt::LeftButton)
   {
     buttonState = buttonState | mitk::InteractionEvent::LeftMouseButton;
   }
   if (me->buttons() & Qt::RightButton)
   {
     buttonState = buttonState | mitk::InteractionEvent::RightMouseButton;
   }
   if (me->buttons() & Qt::MidButton)
   {
     buttonState = buttonState | mitk::InteractionEvent::MiddleMouseButton;
   }
   return buttonState;
 }
 
 mitk::InteractionEvent::ModifierKeys QmitkRenderWindow::GetModifiers(QInputEvent *me) const
 {
   mitk::InteractionEvent::ModifierKeys modifiers = mitk::InteractionEvent::NoKey;
 
   if (me->modifiers() & Qt::ALT)
   {
     modifiers = modifiers | mitk::InteractionEvent::AltKey;
   }
   if (me->modifiers() & Qt::CTRL)
   {
     modifiers = modifiers | mitk::InteractionEvent::ControlKey;
   }
   if (me->modifiers() & Qt::SHIFT)
   {
     modifiers = modifiers | mitk::InteractionEvent::ShiftKey;
   }
   return modifiers;
 }
 
 mitk::InteractionEvent::MouseButtons QmitkRenderWindow::GetButtonState(QWheelEvent *we) const
 {
   mitk::InteractionEvent::MouseButtons buttonState = mitk::InteractionEvent::NoButton;
 
   if (we->buttons() & Qt::LeftButton)
   {
     buttonState = buttonState | mitk::InteractionEvent::LeftMouseButton;
   }
   if (we->buttons() & Qt::RightButton)
   {
     buttonState = buttonState | mitk::InteractionEvent::RightMouseButton;
   }
   if (we->buttons() & Qt::MidButton)
   {
     buttonState = buttonState | mitk::InteractionEvent::MiddleMouseButton;
   }
   return buttonState;
 }
 
 std::string QmitkRenderWindow::GetKeyLetter(QKeyEvent *ke) const
 {
   // Converting Qt Key Event to string element.
   std::string key = "";
   int tkey = ke->key();
   if (tkey < 128)
   { // standard ascii letter
     key = (char)toupper(tkey);
   }
   else
   { // special keys
     switch (tkey)
     {
     case Qt::Key_Return:
       key = mitk::InteractionEvent::KeyReturn;
       break;
     case Qt::Key_Enter:
       key = mitk::InteractionEvent::KeyEnter;
       break;
     case Qt::Key_Escape:
       key = mitk::InteractionEvent::KeyEsc;
       break;
     case Qt::Key_Delete:
       key = mitk::InteractionEvent::KeyDelete;
       break;
     case Qt::Key_Up:
       key = mitk::InteractionEvent::KeyArrowUp;
       break;
     case Qt::Key_Down:
       key = mitk::InteractionEvent::KeyArrowDown;
       break;
     case Qt::Key_Left:
       key = mitk::InteractionEvent::KeyArrowLeft;
       break;
     case Qt::Key_Right:
       key = mitk::InteractionEvent::KeyArrowRight;
       break;
 
     case Qt::Key_F1:
       key = mitk::InteractionEvent::KeyF1;
       break;
     case Qt::Key_F2:
       key = mitk::InteractionEvent::KeyF2;
       break;
     case Qt::Key_F3:
       key = mitk::InteractionEvent::KeyF3;
       break;
     case Qt::Key_F4:
       key = mitk::InteractionEvent::KeyF4;
       break;
     case Qt::Key_F5:
       key = mitk::InteractionEvent::KeyF5;
       break;
     case Qt::Key_F6:
       key = mitk::InteractionEvent::KeyF6;
       break;
     case Qt::Key_F7:
       key = mitk::InteractionEvent::KeyF7;
       break;
     case Qt::Key_F8:
       key = mitk::InteractionEvent::KeyF8;
       break;
     case Qt::Key_F9:
       key = mitk::InteractionEvent::KeyF9;
       break;
     case Qt::Key_F10:
       key = mitk::InteractionEvent::KeyF10;
       break;
     case Qt::Key_F11:
       key = mitk::InteractionEvent::KeyF11;
       break;
     case Qt::Key_F12:
       key = mitk::InteractionEvent::KeyF12;
       break;
 
     case Qt::Key_End:
       key = mitk::InteractionEvent::KeyEnd;
       break;
     case Qt::Key_Home:
       key = mitk::InteractionEvent::KeyPos1;
       break;
     case Qt::Key_Insert:
       key = mitk::InteractionEvent::KeyInsert;
       break;
     case Qt::Key_PageDown:
       key = mitk::InteractionEvent::KeyPageDown;
       break;
     case Qt::Key_PageUp:
       key = mitk::InteractionEvent::KeyPageUp;
       break;
     case Qt::Key_Space:
       key = mitk::InteractionEvent::KeySpace;
       break;
     }
   }
   return key;
 }
 
 int QmitkRenderWindow::GetDelta(QWheelEvent *we) const
 {
   return we->delta();
 }
 
 void QmitkRenderWindow::UpdateStatusBar(mitk::Point2D pointerPositionOnScreen)
 {
   mitk::Point3D worldPosition;
   m_Renderer->ForceImmediateUpdate();
   m_Renderer->DisplayToWorld(pointerPositionOnScreen, worldPosition);
   auto statusBar = mitk::StatusBar::GetInstance();
   statusBar->DisplayRendererInfo(worldPosition, m_Renderer->GetTime());
 }
diff --git a/Modules/Segmentation/Interactions/mitkSegmentationInteractionEvents.h b/Modules/Segmentation/Interactions/mitkSegmentationInteractionEvents.h
new file mode 100644
index 0000000000..dffb6b647e
--- /dev/null
+++ b/Modules/Segmentation/Interactions/mitkSegmentationInteractionEvents.h
@@ -0,0 +1,65 @@
+/*============================================================================
+
+The Medical Imaging Interaction Toolkit (MITK)
+
+Copyright (c) German Cancer Research Center (DKFZ)
+All rights reserved.
+
+Use of this source code is governed by a 3-clause BSD license that can be
+found in the LICENSE file.
+
+============================================================================*/
+
+#ifndef MITKSEGMENTATIONINTERACTIONEVENTS_H
+#define MITKSEGMENTATIONINTERACTIONEVENTS_H
+
+#include <MitkSegmentationExports.h>
+
+// mitk core
+#include "mitkInteractionEvent.h"
+
+// itk
+#include <itkEventObject.h>
+
+namespace mitk
+{
+  class MITKSEGMENTATION_EXPORT SegmentationInteractionEvent : public itk::AnyEvent
+  {
+  public:
+
+    typedef SegmentationInteractionEvent Self;
+    typedef itk::AnyEvent Superclass;
+
+    SegmentationInteractionEvent() : m_InteractionEvent(nullptr) {}
+    SegmentationInteractionEvent(InteractionEvent* interactionEvent, bool enteredRenderWindow)
+      : m_InteractionEvent(interactionEvent)
+      , m_EnteredRenderWindow(enteredRenderWindow)
+    {
+    }
+    ~SegmentationInteractionEvent() override {}
+    const char* GetEventName() const override { return "SegmentationInteractionEvent"; }
+    bool CheckEvent(const itk::EventObject* e) const override { return dynamic_cast<const Self *>(e) != nullptr; }
+    itk::EventObject* MakeObject() const override { return new Self(m_InteractionEvent, m_EnteredRenderWindow); }
+    InteractionEvent* GetInteractionEvent() const { return m_InteractionEvent; }
+    bool HasEnteredRenderWindow() const { return m_EnteredRenderWindow; }
+    BaseRenderer* GetSender() const
+    {
+      return m_InteractionEvent != nullptr ? m_InteractionEvent->GetSender() : nullptr;
+    }
+    SegmentationInteractionEvent(const Self& s)
+      : Superclass(s)
+      , m_InteractionEvent(s.GetInteractionEvent())
+      , m_EnteredRenderWindow(s.m_EnteredRenderWindow)
+    {
+    };
+
+  private:
+
+    InteractionEvent* m_InteractionEvent;
+    bool m_EnteredRenderWindow;
+    void operator=(const Self &);
+  };
+
+} // end namespace
+
+#endif // MITKSEGMENTATIONINTERACTIONEVENTS_H
diff --git a/Modules/Segmentation/Interactions/mitkSegmentationInteractor.cpp b/Modules/Segmentation/Interactions/mitkSegmentationInteractor.cpp
index 10defccf89..5b3c74b5c3 100644
--- a/Modules/Segmentation/Interactions/mitkSegmentationInteractor.cpp
+++ b/Modules/Segmentation/Interactions/mitkSegmentationInteractor.cpp
@@ -1,63 +1,78 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.
 
 ============================================================================*/
 
 #include "mitkSegmentationInteractor.h"
+
 #include "mitkInteractionPositionEvent.h"
-#include "mitkLabelSetImage.h"
-#include "mitkToolManager.h"
-#include "mitkToolManagerProvider.h"
-#include <mitkImagePixelReadAccessor.h>
+#include <mitkInternalEvent.h>
+#include <mitkSegmentationInteractionEvents.h>
+
+// us
+#include "usGetModuleContext.h"
+#include "usModuleContext.h"
 
 #include <cstring>
 
-void mitk::SegmentationInteractor::ConnectActionsAndFunctions()
+mitk::SegmentationInteractor::SegmentationInteractor()
 {
-  Superclass::ConnectActionsAndFunctions();
+  // register the class (itself) as an interaction event observer via micro services
+  us::ServiceProperties props;
+  props["name"] = std::string("SegmentationInteractor");
+  m_ServiceRegistration = us::GetModuleContext()->RegisterService<InteractionEventObserver>(this, props);
 
-  // CONNECT_FUNCTION("change_active_label", ChangeActiveLabel);
+  auto contextModule = us::GetModuleContext()->GetModule();
+
+  this->LoadStateMachine("SegmentationInteraction.xml", contextModule);
+  this->SetEventConfig("SegmentationConfig.xml", contextModule);
 }
 
-void mitk::SegmentationInteractor::ChangeActiveLabel(StateMachineAction*, InteractionEvent* interactionEvent)
+mitk::SegmentationInteractor::~SegmentationInteractor()
 {
-  BaseRenderer::Pointer sender = interactionEvent->GetSender();
-  auto positionEvent = static_cast<InteractionPositionEvent*>(interactionEvent);
+  m_ServiceRegistration.Unregister();
+}
 
-  auto toolManager = mitk::ToolManagerProvider::GetInstance()->GetToolManager();
+void mitk::SegmentationInteractor::ConnectActionsAndFunctions()
+{
+  Superclass::ConnectActionsAndFunctions();
 
-  assert(toolManager);
+  // CONNECT_FUNCTION("change_active_label", ChangeActiveLabel);
+  CONNECT_FUNCTION("EnterRenderWindow", OnEnterRenderWindow);
+  CONNECT_FUNCTION("LeaveRenderWindow", OnLeaveRenderWindow);
+}
 
-  DataNode *workingNode(toolManager->GetWorkingData(0));
-  if (workingNode && positionEvent)
+void mitk::SegmentationInteractor::OnEnterRenderWindow(StateMachineAction*, InteractionEvent* interactionEvent)
+{
+  if (this->IsEnabled())
   {
-    //TODO T28561
-    //Code uses a deprecated method. deactivated whole code until the refactorization is done.
-    throw "TODO T28561. Was forgot to refactor in context of T28524. The new MultiLabelSegmentation class will have a dedicated function for querying the label of world position.";
-
-    //auto *workingImage = dynamic_cast<mitk::LabelSetImage *>(workingNode->GetData());
-    //assert(workingImage);
-
-    //const auto timestep = positionEvent->GetSender()->GetTimeStep(workingImage);
-
-   //int pixelValue = static_cast<int>(workingImage->GetPixelValueByWorldCoordinate(positionEvent->GetPositionInWorld(), timestep));
-    //workingImage->GetActiveLabelSet()->SetActiveLabel(pixelValue); // can be the background
+    auto* internalEvent = dynamic_cast<InternalEvent*>(interactionEvent);
+    if (nullptr == internalEvent)
+    {
+      return;
+    }
 
-    // // Call Events
-    // // workingImage->ActiveLabelEvent.Send(pixelValue);
+    this->InvokeEvent(SegmentationInteractionEvent(interactionEvent, true));
+  }
+}
 
-    // // MLI TODO
-    // // toolManager->WorkingDataModified.Send();
+void mitk::SegmentationInteractor::OnLeaveRenderWindow(StateMachineAction*, InteractionEvent* interactionEvent)
+{
+  if (this->IsEnabled())
+  {
+    auto* internalEvent = dynamic_cast<InternalEvent*>(interactionEvent);
+    if (nullptr == internalEvent)
+    {
+      return;
+    }
 
-    //TODO END Refactor with T28524
+    this->InvokeEvent(SegmentationInteractionEvent(interactionEvent, false));
   }
-
-  RenderingManager::GetInstance()->RequestUpdateAll();
 }
diff --git a/Modules/Segmentation/Interactions/mitkSegmentationInteractor.h b/Modules/Segmentation/Interactions/mitkSegmentationInteractor.h
index 4fce3da3c2..6a93a7d63d 100644
--- a/Modules/Segmentation/Interactions/mitkSegmentationInteractor.h
+++ b/Modules/Segmentation/Interactions/mitkSegmentationInteractor.h
@@ -1,52 +1,60 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.
 
 ============================================================================*/
 
 #ifndef mitkSegmentationInteractor_h
 #define mitkSegmentationInteractor_h
 
 #include "MitkSegmentationExports.h"
 #include <mitkDisplayActionEventBroadcast.h>
 
 namespace mitk
 {
   /**
    *\class SegmentationInteractor
    *@brief Observer that adds interaction with a multi-label segmentation session to the default display interaction.
    *
    * At the moment, this includes changing the active label.
    *
    * @ingroup Interaction
    **/
 
   class MITKSEGMENTATION_EXPORT SegmentationInteractor : public DisplayActionEventBroadcast
   {
   public:
+
     mitkClassMacro(SegmentationInteractor, DisplayActionEventBroadcast);
     itkNewMacro(Self);
 
   protected:
-    SegmentationInteractor(){};
-    ~SegmentationInteractor() override{};
+
+    SegmentationInteractor();
+    ~SegmentationInteractor() override;
+
     /**
      * Derived function.
      * Connects the action names used in the state machine pattern with functions implemented within
      * this InteractionEventObserver. This is only necessary here because the events are processed by the state machine.
      */
     void ConnectActionsAndFunctions() override;
 
+  private:
     /**
-    * Changes the active label.
+    * @brief Reference to the service registration of the observer.
+    *   This is needed to unregister the observer on unload.
     */
-    void ChangeActiveLabel(StateMachineAction*, InteractionEvent*);
+    us::ServiceRegistration<InteractionEventObserver> m_ServiceRegistration;
+
+    void OnEnterRenderWindow(StateMachineAction*, InteractionEvent* interactionEvent);
+    void OnLeaveRenderWindow(StateMachineAction*, InteractionEvent* interactionEvent);
   };
 }
 #endif
diff --git a/Modules/Segmentation/Interactions/mitkToolEvents.h b/Modules/Segmentation/Interactions/mitkToolEvents.h
index 463b8acfa0..5983930004 100644
--- a/Modules/Segmentation/Interactions/mitkToolEvents.h
+++ b/Modules/Segmentation/Interactions/mitkToolEvents.h
@@ -1,212 +1,212 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.
 
 ============================================================================*/
 
 #ifndef MITK_TOOL_EVENTS_H
 #define MITK_TOOL_EVENTS_H
 
 #pragma GCC visibility push(default)
 #include <itkEventObject.h>
 #pragma GCC visibility pop
 
 namespace mitk
 {
 /**
   \brief Basic tool event without any parameters
          Can simply be inherited using the itkEventMacro, e.g.
 \code
 namespace mitk
 {
 
 class MyTool : public Tool
 {
   public:
 
     itkEventMacro(MySpecialEvent, ToolEvent);
 
   [...]
 
   protected:
 
   // Invoke your event like this
   void YourExampleMethod()
   {
     InvokeEvent( MySpecialEvent() );
   }
 };
 
 }
 \endcode
 */
 
 #pragma GCC visibility push(default)
   itkEventMacroDeclaration(ToolEvent, itk::ModifiedEvent); // Definition is in mitkTool.cpp
 #pragma GCC visibility pop
 
   /**
     \brief Tool event with 1 parameter
 
     Can store one parameter for use within an observer. To derive your own special events, use the
   mitkToolEventMacro1Param macro.
   \code
   namespace mitk
   {
 
   class MyTool : public Tool
   {
     public:
 
       mitkToolEventMacro1Param(FooToolEvent, int);
 
     [...]
 
     protected:
 
     // Invoke your event like this
     void YourExampleMethod()
     {
       InvokeEvent( FooToolEvent(32) );
     }
   };
 
   }
   \endcode
   */
   template <typename T>
   class ParameterToolEvent : public ToolEvent
   {
   public:
     typedef ParameterToolEvent Self;
     typedef ToolEvent Superclass;
 
     ParameterToolEvent(const T parameter) : m_Parameter(parameter) {}
     ParameterToolEvent(const Self &s) : ToolEvent(s), m_Parameter(s.m_Parameter) {}
     ~ParameterToolEvent() override {}
     const char *GetEventName() const override { return "ParameterToolEvent"; }
     bool CheckEvent(const ::itk::EventObject *e) const override { return dynamic_cast<const Self *>(e); }
     ::itk::EventObject *MakeObject() const override { return new Self(m_Parameter); }
     const T GetParameter() const { return m_Parameter; }
   protected:
     const T m_Parameter;
 
   private:
     ParameterToolEvent();
 
     void operator=(const Self &);
   };
 
   /**
     \brief Tool event with 1 parameter
 
     Can store one parameter for use within an observer. To derive your own special events, use the
   mitkToolEventMacro1Param macro.
   \code
   namespace mitk
   {
 
   class MyTool : public Tool
   {
     public:
 
       mitkToolEventMacro1Param(FooToolEvent, int);
 
     [...]
 
     protected:
 
     // Invoke your event like this
     void YourExampleMethod()
     {
       InvokeEvent( BarToolEvent(32, false) );
     }
   };
 
   }
   \endcode
   */
   template <typename T, typename U>
   class TwoParameterToolEvent : public ToolEvent
   {
   public:
     typedef TwoParameterToolEvent Self;
     typedef ToolEvent Superclass;
 
     TwoParameterToolEvent(const T parameter1, const U parameter2) : m_Parameter1(parameter1), m_Parameter2(parameter2)
     {
     }
 
     TwoParameterToolEvent(const Self &s) : ToolEvent(s), m_Parameter1(s.m_Parameter1), m_Parameter2(s.m_Parameter2) {}
     ~TwoParameterToolEvent() override {}
     const char *GetEventName() const override { return "TwoParameterToolEvent"; }
     bool CheckEvent(const ::itk::EventObject *e) const override { return dynamic_cast<const Self *>(e); }
     ::itk::EventObject *MakeObject() const override { return new Self(m_Parameter1, m_Parameter2); }
     const T GetParameter1() const { return m_Parameter1; }
-    const T GetParameter2() const { return m_Parameter2; }
+    const U GetParameter2() const { return m_Parameter2; }
   protected:
     const T m_Parameter1;
     const U m_Parameter2;
 
   private:
     TwoParameterToolEvent();
 
     void operator=(const Self &);
   };
 
   typedef ParameterToolEvent<int> IntegerToolEvent;
   typedef ParameterToolEvent<float> FloatToolEvent;
   typedef ParameterToolEvent<bool> BoolToolEvent;
 
 } // namespace
 
 // some macros to let tools define their own event classes as inner classes (should then inherit from something like
 // FloatToolEvent
 // inheritance, because it allows observers to distinguish events
 
 #define mitkToolEventMacro(eventname, baseevent)                                                                       \
   \
 class eventname : public baseevent\
 {virtual const char * GetEventName() const {return #eventname;                                                         \
   }                                                                                                                    \
   \
 }                                                                                                                 \
   ;
 
 #define mitkToolEventMacro1Param(eventname, paramtype1)                                                                \
   \
 class eventname : public ParameterToolEvent<paramtype1>                                                                \
   \
 {                                                                                                                 \
   public:                                                                                                              \
     virtual const char *GetEventName() const { return #eventname "(" #paramtype1 ")"; }                                \
     eventname(const paramtype1 parameter) : ParameterToolEvent<paramtype1>(parameter) {}                               \
   private:                                                                                                             \
     eventname();                                                                                                       \
   \
 };
 
 #define mitkToolEventMacro2Param(eventname, paramtype1, paramtype2)                                                    \
   \
 class eventname : public TwoParameterToolEvent<paramtype1, paramtype2>                                                 \
   \
 {                                                                                                                 \
   public:                                                                                                              \
     virtual const char *GetEventName() const { return #eventname "(" #paramtype1 "," #paramtype2 ")"; }                \
     eventname(const paramtype1 parameter1, const paramtype2 parameter2)                                                \
       : TwoParameterToolEvent<paramtype1, paramtype2>(parameter1, parameter2)                                          \
     {                                                                                                                  \
     }                                                                                                                  \
                                                                                                                        \
   private:                                                                                                             \
     eventname();                                                                                                       \
   \
 };
 
 #endif
diff --git a/Modules/Segmentation/Resources/Interactions/SegmentationConfig.xml b/Modules/Segmentation/Resources/Interactions/SegmentationConfig.xml
new file mode 100644
index 0000000000..1acf0fcb65
--- /dev/null
+++ b/Modules/Segmentation/Resources/Interactions/SegmentationConfig.xml
@@ -0,0 +1,7 @@
+<config>
+  <!-- Internal events do not need a config -->
+  <!-- SegmentationInteraction only contains internal events as "event_class" -->
+  <!-- In order to work we need some dummy "event_variant" -->
+  <event_variant class="InternalEvent" name="EnterRenderWindow"/>
+  <event_variant class="InternalEvent" name="LeaveRenderWindow"/>
+</config>
diff --git a/Modules/Segmentation/Resources/Interactions/SegmentationInteraction.xml b/Modules/Segmentation/Resources/Interactions/SegmentationInteraction.xml
new file mode 100644
index 0000000000..04b48c9d60
--- /dev/null
+++ b/Modules/Segmentation/Resources/Interactions/SegmentationInteraction.xml
@@ -0,0 +1,13 @@
+<statemachine name="SegmentationInteraction">
+  <state name="neutral" startstate="true">
+
+    <transition event_class="InternalEvent" event_variant="EnterRenderWindow" target="neutral">
+      <action name="EnterRenderWindow"/>
+    </transition>
+
+    <transition event_class="InternalEvent" event_variant="LeaveRenderWindow" target="neutral">
+      <action name="LeaveRenderWindow"/>
+    </transition>
+
+  </state>
+</statemachine>
diff --git a/Modules/Segmentation/files.cmake b/Modules/Segmentation/files.cmake
index 9594fabc12..4520f0edc0 100644
--- a/Modules/Segmentation/files.cmake
+++ b/Modules/Segmentation/files.cmake
@@ -1,115 +1,117 @@
 set(CPP_FILES
   Algorithms/mitkCalculateSegmentationVolume.cpp
   Algorithms/mitkContourModelSetToImageFilter.cpp
   Algorithms/mitkContourSetToPointSetFilter.cpp
   Algorithms/mitkContourUtils.cpp
   Algorithms/mitkCorrectorAlgorithm.cpp
   Algorithms/mitkDiffImageApplier.cpp
   Algorithms/mitkDiffSliceOperation.cpp
   Algorithms/mitkDiffSliceOperationApplier.cpp
   Algorithms/mitkFeatureBasedEdgeDetectionFilter.cpp
   Algorithms/mitkGrowCutSegmentationFilter.cpp
   Algorithms/mitkImageLiveWireContourModelFilter.cpp
   Algorithms/mitkImageToContourFilter.cpp
   #Algorithms/mitkImageToContourModelFilter.cpp
   Algorithms/mitkImageToLiveWireContourFilter.cpp
   Algorithms/mitkManualSegmentationToSurfaceFilter.cpp
   Algorithms/mitkOtsuSegmentationFilter.cpp
   Algorithms/mitkSegmentationHelper.cpp
   Algorithms/mitkSegmentationObjectFactory.cpp
   Algorithms/mitkShapeBasedInterpolationAlgorithm.cpp
   Algorithms/mitkShowSegmentationAsSmoothedSurface.cpp
   Algorithms/mitkShowSegmentationAsSurface.cpp
   Algorithms/mitkVtkImageOverwrite.cpp
   Controllers/mitkSegmentationInterpolationController.cpp
   Controllers/mitkToolManager.cpp
   Controllers/mitkSegmentationModuleActivator.cpp
   Controllers/mitkToolManagerProvider.cpp
   DataManagement/mitkContour.cpp
   DataManagement/mitkContourSet.cpp
   DataManagement/mitkExtrudedContour.cpp
   Interactions/mitkAddContourTool.cpp
   Interactions/mitkAutoCropTool.cpp
   Interactions/mitkSegWithPreviewTool.cpp
   Interactions/mitkBinaryThresholdBaseTool.cpp
   Interactions/mitkBinaryThresholdTool.cpp
   Interactions/mitkBinaryThresholdULTool.cpp
   Interactions/mitkCloseRegionTool.cpp
   Interactions/mitkContourModelInteractor.cpp
   Interactions/mitkContourModelLiveWireInteractor.cpp
   Interactions/mitkEditableContourTool.cpp
   Interactions/mitkLiveWireTool2D.cpp
   Interactions/mitkLassoTool.cpp
   Interactions/mitkContourTool.cpp
   Interactions/mitkDrawPaintbrushTool.cpp
   Interactions/mitkErasePaintbrushTool.cpp
   Interactions/mitkEraseRegionTool.cpp
   Interactions/mitkFeedbackContourTool.cpp
   Interactions/mitkFillRegionBaseTool.cpp
   Interactions/mitkFillRegionTool.cpp
   Interactions/mitkGrowCutTool.cpp
   Interactions/mitkOtsuTool3D.cpp
   Interactions/mitkPaintbrushTool.cpp
   Interactions/mitkRegionGrowingTool.cpp
   Interactions/mitkSegmentationsProcessingTool.cpp
   Interactions/mitkSegTool2D.cpp
   Interactions/mitkSubtractContourTool.cpp
   Interactions/mitkTool.cpp
   Interactions/mitkToolCommand.cpp
   Interactions/mitkPickingTool.cpp
   Interactions/mitknnUnetTool.cpp
   Interactions/mitkSegmentationInteractor.cpp #SO
   Interactions/mitkProcessExecutor.cpp
   Rendering/mitkContourMapper2D.cpp
   Rendering/mitkContourSetMapper2D.cpp
   Rendering/mitkContourSetVtkMapper3D.cpp
   Rendering/mitkContourVtkMapper3D.cpp
   SegmentationUtilities/BooleanOperations/mitkBooleanOperation.cpp
   SegmentationUtilities/MorphologicalOperations/mitkMorphologicalOperations.cpp
 #Added from ML
   Controllers/mitkSliceBasedInterpolationController.cpp
   Algorithms/mitkSurfaceStampImageFilter.cpp
 )
 
 set(RESOURCE_FILES
   Add.svg
   Add_Cursor.svg
   AI.svg
   AI_Cursor.svg
   Close.svg
   Close_Cursor.svg
   Erase.svg
   Erase_Cursor.svg
   Fill.svg
   Fill_Cursor.svg
   LiveWire.svg
   LiveWire_Cursor.svg
   Lasso.svg
   GrowCut.svg
   Lasso_Cursor.svg
   Otsu.svg
   Paint.svg
   Paint_Cursor.svg
   Picking.svg
   RegionGrowing.svg
   RegionGrowing_Cursor.svg
   Subtract.svg
   Subtract_Cursor.svg
   Threshold.svg
   ULThreshold.svg
   Wipe.svg
   Wipe_Cursor.svg
 
   Interactions/dummy.xml
   Interactions/EditableContourTool.xml
   Interactions/PickingTool.xml
   Interactions/MouseReleaseOnly.xml
   Interactions/PressMoveRelease.xml
   Interactions/PressMoveReleaseAndPointSetting.xml
   Interactions/PressMoveReleaseWithCTRLInversion.xml
   Interactions/PressMoveReleaseWithCTRLInversionAllMouseMoves.xml
+  Interactions/SegmentationConfig.xml
+  Interactions/SegmentationInteraction.xml
   Interactions/SegmentationToolsConfig.xml
 
   Interactions/ContourModelModificationConfig.xml
   Interactions/ContourModelModificationInteractor.xml
 )
diff --git a/Plugins/org.mitk.gui.qt.segmentation/src/internal/QmitkSegmentationView.cpp b/Plugins/org.mitk.gui.qt.segmentation/src/internal/QmitkSegmentationView.cpp
index 0172317ef8..bd093a5ff8 100644
--- a/Plugins/org.mitk.gui.qt.segmentation/src/internal/QmitkSegmentationView.cpp
+++ b/Plugins/org.mitk.gui.qt.segmentation/src/internal/QmitkSegmentationView.cpp
@@ -1,1009 +1,1123 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.
 
 ============================================================================*/
 
 #include "QmitkSegmentationView.h"
 #include "mitkPluginActivator.h"
 
 // blueberry
 #include <berryIWorkbenchPage.h>
 
 // mitk
 #include <mitkApplicationCursor.h>
 #include <mitkBaseApplication.h>
+#include <mitkBaseRendererHelper.h>
 #include <mitkCameraController.h>
 #include <mitkLabelSetImage.h>
 #include <mitkLabelSetImageHelper.h>
 #include <mitkLabelSetIOHelper.h>
+#include <mitkManualPlacementAnnotationRenderer.h>
 #include <mitkNodePredicateSubGeometry.h>
+#include <mitkSegmentationInteractionEvents.h>
 #include <mitkSegmentationObjectFactory.h>
 #include <mitkSegTool2D.h>
 #include <mitkStatusBar.h>
 #include <mitkToolManagerProvider.h>
 #include <mitkVtkResliceInterpolationProperty.h>
 #include <mitkWorkbenchUtil.h>
 
 // Qmitk
 #include <QmitkRenderWindow.h>
 #include <QmitkStaticDynamicSegmentationDialog.h>
 #include <QmitkNewSegmentationDialog.h>
 
 // us
 #include <usModuleResource.h>
 #include <usModuleResourceStream.h>
 
 // Qt
 #include <QMessageBox>
 #include <QShortcut>
 #include <QDir>
 
+// vtk
+#include <vtkQImageToImageSource.h>
+
 #include <regex>
 
 const std::string QmitkSegmentationView::VIEW_ID = "org.mitk.views.segmentation";
 
 QmitkSegmentationView::QmitkSegmentationView()
   : m_Parent(nullptr)
   , m_Controls(nullptr)
   , m_RenderWindowPart(nullptr)
   , m_ToolManager(nullptr)
   , m_ReferenceNode(nullptr)
   , m_WorkingNode(nullptr)
+  , m_RendererAnnotation(mitk::LogoAnnotation::New())
   , m_DrawOutline(true)
   , m_SelectionMode(false)
   , m_MouseCursorSet(false)
   , m_DefaultLabelNaming(true)
 {
   auto isImage = mitk::TNodePredicateDataType<mitk::Image>::New();
   auto isDwi = mitk::NodePredicateDataType::New("DiffusionImage");
   auto isDti = mitk::NodePredicateDataType::New("TensorImage");
   auto isOdf = mitk::NodePredicateDataType::New("OdfImage");
   auto isSegment = mitk::NodePredicateDataType::New("Segment");
 
   auto validImages = mitk::NodePredicateOr::New();
   validImages->AddPredicate(mitk::NodePredicateAnd::New(isImage, mitk::NodePredicateNot::New(isSegment)));
   validImages->AddPredicate(isDwi);
   validImages->AddPredicate(isDti);
   validImages->AddPredicate(isOdf);
 
   auto isBinary = mitk::NodePredicateProperty::New("binary", mitk::BoolProperty::New(true));
   auto isMask = mitk::NodePredicateAnd::New(isBinary, isImage);
 
   auto validSegmentations = mitk::NodePredicateOr::New();
   validSegmentations->AddPredicate(mitk::TNodePredicateDataType<mitk::LabelSetImage>::New());
   validSegmentations->AddPredicate(isMask);
 
   m_SegmentationPredicate = mitk::NodePredicateAnd::New();
   m_SegmentationPredicate->AddPredicate(validSegmentations);
   m_SegmentationPredicate->AddPredicate(mitk::NodePredicateNot::New(mitk::NodePredicateProperty::New("helper object")));
   m_SegmentationPredicate->AddPredicate(mitk::NodePredicateNot::New(mitk::NodePredicateProperty::New("hidden object")));
 
   m_ReferencePredicate = mitk::NodePredicateAnd::New();
   m_ReferencePredicate->AddPredicate(validImages);
   m_ReferencePredicate->AddPredicate(mitk::NodePredicateNot::New(m_SegmentationPredicate));
   m_ReferencePredicate->AddPredicate(mitk::NodePredicateNot::New(mitk::NodePredicateProperty::New("helper object")));
   m_ReferencePredicate->AddPredicate(mitk::NodePredicateNot::New(mitk::NodePredicateProperty::New("hidden object")));
+
+  // setup annotation for an overlay image to indicated a blocked renderer
+  m_RendererAnnotation->SetOpacity(0.5);
+  m_RendererAnnotation->SetRelativeSize(0.25);
+  m_RendererAnnotation->SetCornerPosition(4);
+
+  QImage* qimage = new QImage(qPrintable(":/Qmitk/Cancel_48x48.png"));
+  vtkSmartPointer<vtkQImageToImageSource> qImageToVtk;
+  qImageToVtk = vtkSmartPointer<vtkQImageToImageSource>::New();
+
+  qImageToVtk->SetQImage(qimage);
+  qImageToVtk->Update();
+  vtkSmartPointer<vtkImageData> vtkLogo = qImageToVtk->GetOutput();
+  m_RendererAnnotation->SetLogoImage(vtkLogo);
+
+  m_SegmentationInteractor = mitk::SegmentationInteractor::New();
+  // add observer for the 'SegmentationInteractionEvent'
+  itk::ReceptorMemberCommand<QmitkSegmentationView>::Pointer geometryNotAlignedCommand =
+    itk::ReceptorMemberCommand<QmitkSegmentationView>::New();
+  geometryNotAlignedCommand->SetCallbackFunction(this, &QmitkSegmentationView::ValidateRendererGeometry);
+  m_SegmentationInteractor->AddObserver(mitk::SegmentationInteractionEvent(nullptr, true), geometryNotAlignedCommand);
+  m_SegmentationInteractor->Disable();
 }
 
 QmitkSegmentationView::~QmitkSegmentationView()
 {
   if (nullptr != m_Controls)
   {
     OnLooseLabelSetConnection();
 
     // deactivate all tools
     m_ToolManager->ActivateTool(-1);
 
     // removing all observers from working data
     for (NodeTagMapType::iterator dataIter = m_WorkingDataObserverTags.begin(); dataIter != m_WorkingDataObserverTags.end(); ++dataIter)
     {
       (*dataIter).first->GetProperty("visible")->RemoveObserver((*dataIter).second);
     }
     m_WorkingDataObserverTags.clear();
 
     // removing all observers from reference data
     for (NodeTagMapType::iterator dataIter = m_ReferenceDataObserverTags.begin(); dataIter != m_ReferenceDataObserverTags.end(); ++dataIter)
     {
       (*dataIter).first->GetProperty("visible")->RemoveObserver((*dataIter).second);
     }
     m_ReferenceDataObserverTags.clear();
 
     mitk::RenderingManager::GetInstance()->RemoveObserver(m_RenderingManagerObserverTag);
 
     ctkPluginContext* context = mitk::PluginActivator::getContext();
     ctkServiceReference ppmRef = context->getServiceReference<mitk::PlanePositionManagerService>();
     mitk::PlanePositionManagerService* service = context->getService<mitk::PlanePositionManagerService>(ppmRef);
     service->RemoveAllPlanePositions();
     context->ungetService(ppmRef);
 
     m_ToolManager->SetReferenceData(nullptr);
     m_ToolManager->SetWorkingData(nullptr);
   }
 
+  m_ToolManager->ActiveToolChanged -=
+    mitk::MessageDelegate<QmitkSegmentationView>(this, &QmitkSegmentationView::ActiveToolChanged);
+
   delete m_Controls;
 }
 
 /**********************************************************************/
 /* private Q_SLOTS                                                    */
 /**********************************************************************/
 void QmitkSegmentationView::OnReferenceSelectionChanged(QList<mitk::DataNode::Pointer> nodes)
 {
   m_ToolManager->ActivateTool(-1);
 
   // Remove observer if one was registered to the reference node
   auto finding = m_ReferenceDataObserverTags.find(m_ReferenceNode);
   if (finding != m_ReferenceDataObserverTags.end())
   {
     m_ReferenceNode->GetProperty("visible")->RemoveObserver(m_ReferenceDataObserverTags[m_ReferenceNode]);
     m_ReferenceDataObserverTags.erase(m_ReferenceNode);
   }
 
   if (nodes.empty())
   {
     m_Controls->workingNodeSelector->SetNodePredicate(m_SegmentationPredicate);
     m_ReferenceNode = nullptr;
     m_ToolManager->SetReferenceData(m_ReferenceNode);
     this->UpdateGUI();
     return;
   }
 
   m_ReferenceNode = nodes.first();
   m_ToolManager->SetReferenceData(m_ReferenceNode);
   if (m_ReferenceNode.IsNotNull())
   {
     // set a predicate such that a segmentation fits the selected reference image geometry
     auto segPredicate = mitk::NodePredicateAnd::New(m_SegmentationPredicate.GetPointer(),
       mitk::NodePredicateSubGeometry::New(m_ReferenceNode->GetData()->GetGeometry()));
 
     m_Controls->workingNodeSelector->SetNodePredicate(segPredicate);
 
     if (m_SelectionMode)
     {
       // hide all image nodes to later show only the automatically selected ones
       mitk::DataStorage::SetOfObjects::ConstPointer imageNodes =
         this->GetDataStorage()->GetSubset(m_ReferencePredicate);
       for (mitk::DataStorage::SetOfObjects::const_iterator iter = imageNodes->begin(); iter != imageNodes->end(); ++iter)
       {
         (*iter)->SetVisibility(false);
       }
     }
     m_ReferenceNode->SetVisibility(true);
 
     auto command = itk::SimpleMemberCommand<QmitkSegmentationView>::New();
     command->SetCallbackFunction(this, &QmitkSegmentationView::ValidateSelectionInput);
     m_ReferenceDataObserverTags[m_ReferenceNode] =
       m_ReferenceNode->GetProperty("visible")->AddObserver(itk::ModifiedEvent(), command);
   }
 
   this->UpdateGUI();
 }
 
 void QmitkSegmentationView::OnSegmentationSelectionChanged(QList<mitk::DataNode::Pointer> nodes)
 {
   m_ToolManager->ActivateTool(-1);
 
   // Remove observer if one was registered
   auto finding = m_WorkingDataObserverTags.find(m_WorkingNode);
   if (finding != m_WorkingDataObserverTags.end())
   {
     m_WorkingNode->GetProperty("visible")->RemoveObserver(m_WorkingDataObserverTags[m_WorkingNode]);
     m_WorkingDataObserverTags.erase(m_WorkingNode);
   }
 
   if (nodes.empty())
   {
     m_WorkingNode = nullptr;
     m_ToolManager->SetWorkingData(m_WorkingNode);
     this->UpdateGUI();
     return;
   }
 
   if (m_ReferenceNode.IsNull())
   {
     this->UpdateGUI();
     return;
   }
 
   mitk::Image::ConstPointer referenceImage = dynamic_cast<mitk::Image*>(m_ReferenceNode->GetData());
   if (referenceImage.IsNull())
   {
     this->UpdateGUI();
     return;
   }
 
   m_WorkingNode = nodes.first();
   m_ToolManager->SetWorkingData(m_WorkingNode);
   if (m_WorkingNode.IsNotNull())
   {
     if (m_SelectionMode)
     {
       // hide all segmentation nodes to later show only the selected ones
       mitk::DataStorage::SetOfObjects::ConstPointer segmentationNodes =
         this->GetDataStorage()->GetSubset(m_SegmentationPredicate);
       for (mitk::DataStorage::SetOfObjects::const_iterator iter = segmentationNodes->begin(); iter != segmentationNodes->end(); ++iter)
       {
         (*iter)->SetVisibility(false);
       }
     }
     m_WorkingNode->SetVisibility(true);
 
     this->OnEstablishLabelSetConnection();
     m_Controls->labelSetWidget->ResetAllTableWidgetItems();
 
     auto command = itk::SimpleMemberCommand<QmitkSegmentationView>::New();
     command->SetCallbackFunction(this, &QmitkSegmentationView::ValidateSelectionInput);
     m_WorkingDataObserverTags[m_WorkingNode] =
       m_WorkingNode->GetProperty("visible")->AddObserver(itk::ModifiedEvent(), command);
 
     this->InitializeRenderWindows(referenceImage->GetTimeGeometry(), mitk::RenderingManager::REQUEST_UPDATE_ALL, false);
   }
 
   this->UpdateGUI();
 }
 
 void QmitkSegmentationView::OnVisibilityShortcutActivated()
 {
   if (m_WorkingNode.IsNull())
   {
     return;
   }
 
   bool isVisible = false;
   m_WorkingNode->GetBoolProperty("visible", isVisible);
   m_WorkingNode->SetVisibility(!isVisible);
 
   mitk::RenderingManager::GetInstance()->RequestUpdateAll();
 }
 
 void QmitkSegmentationView::OnLabelToggleShortcutActivated()
 {
   if (m_WorkingNode.IsNull())
   {
     return;
   }
 
   auto workingImage = dynamic_cast<mitk::LabelSetImage*>(m_WorkingNode->GetData());
   if (nullptr == workingImage)
   {
     return;
   }
 
   this->WaitCursorOn();
   workingImage->GetActiveLabelSet()->SetNextActiveLabel();
   workingImage->Modified();
   this->WaitCursorOff();
 
   mitk::RenderingManager::GetInstance()->RequestUpdateAll();
 }
 
 void QmitkSegmentationView::OnNewSegmentation()
 {
   m_ToolManager->ActivateTool(-1);
 
   if (m_ReferenceNode.IsNull())
   {
     MITK_ERROR << "'Create new segmentation' button should never be clickable unless a reference image is selected.";
     return;
   }
 
   mitk::Image::ConstPointer referenceImage = dynamic_cast<mitk::Image*>(m_ReferenceNode->GetData());
   if (referenceImage.IsNull())
   {
     QMessageBox::information(
       m_Parent, "New segmentation", "Please load and select an image before starting some action.");
     return;
   }
 
   if (referenceImage->GetDimension() <= 1)
   {
     QMessageBox::information(
       m_Parent, "New segmentation", "Segmentation is currently not supported for 2D images");
     return;
   }
 
   auto segTemplateImage = referenceImage;
   if (referenceImage->GetDimension() > 3)
   {
     QmitkStaticDynamicSegmentationDialog dialog(m_Parent);
     dialog.SetReferenceImage(referenceImage.GetPointer());
     dialog.exec();
     segTemplateImage = dialog.GetSegmentationTemplate();
   }
 
   mitk::DataNode::Pointer newSegmentationNode;
   try
   {
     this->WaitCursorOn();
     newSegmentationNode = mitk::LabelSetImageHelper::CreateNewSegmentationNode(m_ReferenceNode, segTemplateImage);
     this->WaitCursorOff();
   }
   catch (mitk::Exception& e)
   {
     this->WaitCursorOff();
     MITK_ERROR << "Exception caught: " << e.GetDescription();
     QMessageBox::warning(m_Parent, "New segmentation", "Could not create a new segmentation.");
     return;
   }
 
   auto newLabelSetImage = dynamic_cast<mitk::LabelSetImage*>(newSegmentationNode->GetData());
   if (nullptr == newLabelSetImage)
   {
     // something went wrong
     return;
   }
 
   const auto labelSetPreset = this->GetDefaultLabelSetPreset();
 
   if (labelSetPreset.empty() || !mitk::LabelSetIOHelper::LoadLabelSetImagePreset(labelSetPreset, newLabelSetImage))
   {
     auto newLabel = mitk::LabelSetImageHelper::CreateNewLabel(newLabelSetImage);
 
     if (!m_DefaultLabelNaming)
     {
       QmitkNewSegmentationDialog dialog(m_Parent);
       dialog.SetName(QString::fromStdString(newLabel->GetName()));
       dialog.SetColor(newLabel->GetColor());
 
       if (QDialog::Rejected == dialog.exec())
         return;
 
       auto name = dialog.GetName();
 
       if (!name.isEmpty())
         newLabel->SetName(name.toStdString());
 
       newLabel->SetColor(dialog.GetColor());
     }
 
     newLabelSetImage->GetActiveLabelSet()->AddLabel(newLabel);
   }
 
   if (!this->GetDataStorage()->Exists(newSegmentationNode))
   {
     this->GetDataStorage()->Add(newSegmentationNode, m_ReferenceNode);
   }
 
   if (m_ToolManager->GetWorkingData(0))
   {
     m_ToolManager->GetWorkingData(0)->SetSelected(false);
   }
 
   newSegmentationNode->SetSelected(true);
   m_Controls->workingNodeSelector->SetCurrentSelectedNode(newSegmentationNode);
 }
 
 std::string QmitkSegmentationView::GetDefaultLabelSetPreset() const
 {
   auto labelSetPreset = mitk::BaseApplication::instance().config().getString(mitk::BaseApplication::ARG_SEGMENTATION_LABELSET_PRESET.toStdString(), "");
 
   if (labelSetPreset.empty())
     labelSetPreset = m_LabelSetPresetPreference.toStdString();
 
   return labelSetPreset;
 }
 
 void QmitkSegmentationView::OnManualTool2DSelected(int id)
 {
   this->ResetMouseCursor();
   mitk::StatusBar::GetInstance()->DisplayText("");
 
   if (id >= 0)
   {
     std::string text = "Active Tool: \"";
     text += m_ToolManager->GetToolById(id)->GetName();
     text += "\"";
     mitk::StatusBar::GetInstance()->DisplayText(text.c_str());
 
     us::ModuleResource resource = m_ToolManager->GetToolById(id)->GetCursorIconResource();
     this->SetMouseCursor(resource, 0, 0);
   }
 }
 
 void QmitkSegmentationView::OnShowMarkerNodes(bool state)
 {
   mitk::SegTool2D::Pointer manualSegmentationTool;
 
   unsigned int numberOfExistingTools = m_ToolManager->GetTools().size();
 
   for (unsigned int i = 0; i < numberOfExistingTools; i++)
   {
     manualSegmentationTool = dynamic_cast<mitk::SegTool2D*>(m_ToolManager->GetToolById(i));
     if (nullptr == manualSegmentationTool)
     {
       continue;
     }
 
     manualSegmentationTool->SetShowMarkerNodes(state);
   }
 }
 
 void QmitkSegmentationView::OnLayersChanged()
 {
   this->OnEstablishLabelSetConnection();
   m_Controls->labelSetWidget->ResetAllTableWidgetItems();
 }
 
 void QmitkSegmentationView::OnShowLabelTable(bool value)
 {
   m_Controls->labelSetWidget->setVisible(value);
 }
 
 void QmitkSegmentationView::OnGoToLabel(const mitk::Point3D& pos)
 {
   if (m_RenderWindowPart)
   {
     m_RenderWindowPart->SetSelectedPosition(pos);
   }
 }
 
 void QmitkSegmentationView::OnLabelSetWidgetReset()
 {
   this->ValidateSelectionInput();
 }
 
 /**********************************************************************/
 /* private                                                            */
 /**********************************************************************/
 void QmitkSegmentationView::CreateQtPartControl(QWidget* parent)
 {
    m_Parent = parent;
 
    m_Controls = new Ui::QmitkSegmentationViewControls;
    m_Controls->setupUi(parent);
 
    // *------------------------
    // * SHORTCUTS
    // *------------------------
    QShortcut* visibilityShortcut = new QShortcut(QKeySequence(Qt::CTRL | Qt::Key::Key_H), parent);
    connect(visibilityShortcut, &QShortcut::activated, this, &QmitkSegmentationView::OnVisibilityShortcutActivated);
    QShortcut* labelToggleShortcut = new QShortcut(QKeySequence(Qt::CTRL | Qt::Key::Key_L, Qt::CTRL | Qt::Key::Key_I), parent);
    connect(labelToggleShortcut, &QShortcut::activated, this, &QmitkSegmentationView::OnLabelToggleShortcutActivated);
 
    // *------------------------
    // * DATA SELECTION WIDGETS
    // *------------------------
    m_Controls->referenceNodeSelector->SetDataStorage(GetDataStorage());
    m_Controls->referenceNodeSelector->SetNodePredicate(m_ReferencePredicate);
    m_Controls->referenceNodeSelector->SetInvalidInfo("Select an image");
    m_Controls->referenceNodeSelector->SetPopUpTitel("Select an image");
    m_Controls->referenceNodeSelector->SetPopUpHint("Select an image that should be used to define the geometry and bounds of the segmentation.");
 
    m_Controls->workingNodeSelector->SetDataStorage(GetDataStorage());
    m_Controls->workingNodeSelector->SetNodePredicate(m_SegmentationPredicate);
    m_Controls->workingNodeSelector->SetInvalidInfo("Select a segmentation");
    m_Controls->workingNodeSelector->SetPopUpTitel("Select a segmentation");
    m_Controls->workingNodeSelector->SetPopUpHint("Select a segmentation that should be modified. Only segmentation with the same geometry and within the bounds of the reference image are selected.");
 
    connect(m_Controls->referenceNodeSelector, &QmitkAbstractNodeSelectionWidget::CurrentSelectionChanged,
            this, &QmitkSegmentationView::OnReferenceSelectionChanged);
    connect(m_Controls->workingNodeSelector, &QmitkAbstractNodeSelectionWidget::CurrentSelectionChanged,
            this, &QmitkSegmentationView::OnSegmentationSelectionChanged);
 
    // *------------------------
    // * TOOLMANAGER
    // *------------------------
    m_ToolManager = mitk::ToolManagerProvider::GetInstance()->GetToolManager();
    m_ToolManager->SetDataStorage(*(this->GetDataStorage()));
    m_ToolManager->InitializeTools();
 
+   // react if the active tool changed
+   m_ToolManager->ActiveToolChanged +=
+     mitk::MessageDelegate<QmitkSegmentationView>(this, &QmitkSegmentationView::ActiveToolChanged);
+
    QString segTools2D = tr("Add Subtract Lasso Fill Erase Close Paint Wipe 'Region Growing' 'Live Wire'");
    QString segTools3D = tr("Threshold 'UL Threshold' Otsu 'Region Growing 3D' Picking GrowCut");
+
 #ifdef __linux__
    segTools3D.append(" nnUNet"); // plugin not enabled for MacOS / Windows
 #endif
    std::regex extSegTool2DRegEx("SegTool2D$");
    std::regex extSegTool3DRegEx("SegTool3D$");
 
    auto tools = m_ToolManager->GetTools();
    for (const auto &tool : tools)
    {
      if (std::regex_search(tool->GetNameOfClass(), extSegTool2DRegEx))
      {
        segTools2D.append(QString(" '%1'").arg(tool->GetName()));
      }
      else if (std::regex_search(tool->GetNameOfClass(), extSegTool3DRegEx))
      {
        segTools3D.append(QString(" '%1'").arg(tool->GetName()));
      }
    }
 
    // setup 2D tools
    m_Controls->toolSelectionBox2D->SetToolManager(*m_ToolManager);
    m_Controls->toolSelectionBox2D->SetGenerateAccelerators(true);
    m_Controls->toolSelectionBox2D->SetToolGUIArea(m_Controls->toolGUIArea2D);
    m_Controls->toolSelectionBox2D->SetDisplayedToolGroups(segTools2D.toStdString());
    m_Controls->toolSelectionBox2D->SetLayoutColumns(3);
    m_Controls->toolSelectionBox2D->SetEnabledMode(
      QmitkToolSelectionBox::EnabledWithReferenceAndWorkingDataVisible);
    connect(m_Controls->toolSelectionBox2D, &QmitkToolSelectionBox::ToolSelected,
            this, &QmitkSegmentationView::OnManualTool2DSelected);
 
    // setup 3D Tools
    m_Controls->toolSelectionBox3D->SetToolManager(*m_ToolManager);
    m_Controls->toolSelectionBox3D->SetGenerateAccelerators(true);
    m_Controls->toolSelectionBox3D->SetToolGUIArea(m_Controls->toolGUIArea3D);
    m_Controls->toolSelectionBox3D->SetDisplayedToolGroups(segTools3D.toStdString());
    m_Controls->toolSelectionBox3D->SetLayoutColumns(3);
    m_Controls->toolSelectionBox3D->SetEnabledMode(
      QmitkToolSelectionBox::EnabledWithReferenceAndWorkingDataVisible);
 
    m_Controls->slicesInterpolator->SetDataStorage(this->GetDataStorage());
 
    // create general signal / slot connections
    connect(m_Controls->newSegmentationButton, &QToolButton::clicked, this, &QmitkSegmentationView::OnNewSegmentation);
    connect(m_Controls->slicesInterpolator, &QmitkSlicesInterpolator::SignalShowMarkerNodes, this, &QmitkSegmentationView::OnShowMarkerNodes);
 
    connect(m_Controls->layersWidget, &QmitkLayersWidget::LayersChanged, this, &QmitkSegmentationView::OnLayersChanged);
    connect(m_Controls->labelsWidget, &QmitkLabelsWidget::ShowLabelTable, this, &QmitkSegmentationView::OnShowLabelTable);
 
    // *------------------------
    // * LABELSETWIDGET
    // *------------------------
    connect(m_Controls->labelSetWidget, &QmitkLabelSetWidget::goToLabel, this, &QmitkSegmentationView::OnGoToLabel);
    connect(m_Controls->labelSetWidget, &QmitkLabelSetWidget::LabelSetWidgetReset, this, &QmitkSegmentationView::OnLabelSetWidgetReset);
 
    m_Controls->labelSetWidget->SetDataStorage(this->GetDataStorage());
    m_Controls->labelSetWidget->hide();
 
    auto command = itk::SimpleMemberCommand<QmitkSegmentationView>::New();
    command->SetCallbackFunction(this, &QmitkSegmentationView::ValidateSelectionInput);
    m_RenderingManagerObserverTag =
      mitk::RenderingManager::GetInstance()->AddObserver(mitk::RenderingManagerViewsInitializedEvent(), command);
 
    m_RenderWindowPart = this->GetRenderWindowPart();
    if (nullptr != m_RenderWindowPart)
    {
      this->RenderWindowPartActivated(m_RenderWindowPart);
    }
 
    // Make sure the GUI notices if appropriate data is already present on creation.
    // Should be done last, if everything else is configured because it triggers the autoselection of data.
    m_Controls->referenceNodeSelector->SetAutoSelectNewNodes(true);
    m_Controls->workingNodeSelector->SetAutoSelectNewNodes(true);
 
    this->UpdateGUI();
 }
 
+void QmitkSegmentationView::ActiveToolChanged()
+{
+  auto activeTool = m_ToolManager->GetActiveTool();
+  if (nullptr == activeTool)
+  {
+    // no tool activated, deactivate the segmentation interactor
+    m_SegmentationInteractor->Disable();
+    return;
+  }
+
+  // activate segmentation interactor to get informed about render window entered / left events
+  m_SegmentationInteractor->Enable();
+}
+
+void QmitkSegmentationView::ValidateRendererGeometry(const itk::EventObject& event)
+{
+  if (!mitk::SegmentationInteractionEvent().CheckEvent(&event))
+  {
+    return;
+  }
+
+  const auto* segmentationInteractionEvent =
+    dynamic_cast<const mitk::SegmentationInteractionEvent*>(&event);
+
+  const mitk::BaseRenderer::Pointer sendingRenderer = segmentationInteractionEvent->GetSender();
+  if (nullptr == sendingRenderer)
+  {
+    return;
+  }
+
+  bool entered = segmentationInteractionEvent->HasEnteredRenderWindow();
+  if (entered)
+  {
+    // mouse cursor of tool inside render window
+    // check if tool can be used: reference geometry needs to be aligned with renderer geometry
+    const auto* referenceDataNode = m_ToolManager->GetReferenceData(0);
+    if (nullptr != referenceDataNode)
+    {
+      const auto workingImage = dynamic_cast<mitk::Image*>(referenceDataNode->GetData());
+      if (nullptr != workingImage)
+      {
+        const mitk::TimeGeometry* workingImageGeometry = workingImage->GetTimeGeometry();
+        if (nullptr != workingImageGeometry)
+        {
+          bool isGeometryAligned =
+            mitk::BaseRendererHelper::IsRendererAlignedWithSegmentation(sendingRenderer, workingImageGeometry);
+
+          if (!isGeometryAligned)
+          {
+            this->BlockRenderer(sendingRenderer, true);
+            this->UpdateWarningLabel(
+              tr("Please perform a reinit on the segmentation image inside the entered Render Window!"));
+            return;
+          }
+        }
+      }
+    }
+  }
+
+  this->BlockRenderer(sendingRenderer, false);
+  this->UpdateWarningLabel(tr(""));
+}
+
+void QmitkSegmentationView::BlockRenderer(mitk::BaseRenderer* baseRenderer, bool blocked)
+{
+  if (blocked)
+  {
+    mitk::ManualPlacementAnnotationRenderer::AddAnnotation(m_RendererAnnotation.GetPointer(), baseRenderer);
+    m_RendererAnnotation->Update(baseRenderer);
+    baseRenderer->RequestUpdate();
+  }
+  else
+  {
+    m_RendererAnnotation->RemoveFromBaseRenderer(baseRenderer);
+  }
+}
+
 void QmitkSegmentationView::RenderWindowPartActivated(mitk::IRenderWindowPart* renderWindowPart)
 {
   if (m_RenderWindowPart != renderWindowPart)
   {
     m_RenderWindowPart = renderWindowPart;
   }
 
   if (nullptr != m_Parent)
   {
     m_Parent->setEnabled(true);
   }
 
   if (nullptr == m_Controls)
   {
     return;
   }
 
   // tell the interpolation about tool manager, data storage and render window part
   if (nullptr != m_RenderWindowPart)
   {
     QList<mitk::SliceNavigationController*> controllers;
     controllers.push_back(m_RenderWindowPart->GetQmitkRenderWindow("axial")->GetSliceNavigationController());
     controllers.push_back(m_RenderWindowPart->GetQmitkRenderWindow("sagittal")->GetSliceNavigationController());
     controllers.push_back(m_RenderWindowPart->GetQmitkRenderWindow("coronal")->GetSliceNavigationController());
     m_Controls->slicesInterpolator->Initialize(m_ToolManager, controllers);
   }
 }
 
 void QmitkSegmentationView::RenderWindowPartDeactivated(mitk::IRenderWindowPart* /*renderWindowPart*/)
 {
   m_RenderWindowPart = nullptr;
   if (nullptr != m_Parent)
   {
     m_Parent->setEnabled(false);
   }
 }
 
 void QmitkSegmentationView::OnPreferencesChanged(const berry::IBerryPreferences* prefs)
 {
   auto labelSuggestions = mitk::BaseApplication::instance().config().getString(mitk::BaseApplication::ARG_SEGMENTATION_LABEL_SUGGESTIONS.toStdString(), "");
 
   m_DefaultLabelNaming = labelSuggestions.empty()
     ? prefs->GetBool("default label naming", true)
     : false; // No default label naming when label suggestions are enforced via command-line argument
 
   if (nullptr != m_Controls)
   {
     m_Controls->labelsWidget->SetDefaultLabelNaming(m_DefaultLabelNaming);
 
     bool slimView = prefs->GetBool("slim view", false);
     m_Controls->toolSelectionBox2D->SetShowNames(!slimView);
     m_Controls->toolSelectionBox3D->SetShowNames(!slimView);
   }
 
   m_DrawOutline = prefs->GetBool("draw outline", true);
   m_SelectionMode = prefs->GetBool("selection mode", false);
 
   m_LabelSetPresetPreference = prefs->Get("label set preset", "");
 
   this->ApplyDisplayOptions();
 }
 
 void QmitkSegmentationView::NodeAdded(const mitk::DataNode* node)
 {
   if (m_SegmentationPredicate->CheckNode(node))
   {
     this->ApplyDisplayOptions(const_cast<mitk::DataNode*>(node));
   }
 }
 
 void QmitkSegmentationView::NodeRemoved(const mitk::DataNode* node)
 {
   if (!m_SegmentationPredicate->CheckNode(node))
   {
     return;
   }
 
   // remove all possible contour markers of the segmentation
   mitk::DataStorage::SetOfObjects::ConstPointer allContourMarkers = this->GetDataStorage()->GetDerivations(
     node, mitk::NodePredicateProperty::New("isContourMarker", mitk::BoolProperty::New(true)));
 
   ctkPluginContext* context = mitk::PluginActivator::getContext();
   ctkServiceReference ppmRef = context->getServiceReference<mitk::PlanePositionManagerService>();
   mitk::PlanePositionManagerService* service = context->getService<mitk::PlanePositionManagerService>(ppmRef);
 
   for (mitk::DataStorage::SetOfObjects::ConstIterator it = allContourMarkers->Begin(); it != allContourMarkers->End(); ++it)
   {
     std::string nodeName = node->GetName();
     unsigned int t = nodeName.find_last_of(" ");
     unsigned int id = atof(nodeName.substr(t + 1).c_str()) - 1;
 
     service->RemovePlanePosition(id);
 
     this->GetDataStorage()->Remove(it->Value());
   }
 
   context->ungetService(ppmRef);
   service = nullptr;
 
   mitk::Image* image = dynamic_cast<mitk::Image*>(node->GetData());
   mitk::SurfaceInterpolationController::GetInstance()->RemoveInterpolationSession(image);
 }
 
 void QmitkSegmentationView::OnEstablishLabelSetConnection()
 {
   if (m_WorkingNode.IsNull())
   {
     return;
   }
 
   auto workingImage = dynamic_cast<mitk::LabelSetImage*>(m_WorkingNode->GetData());
   if (nullptr == workingImage)
   {
     return;
   }
 
   workingImage->GetActiveLabelSet()->AddLabelEvent += mitk::MessageDelegate<QmitkLabelSetWidget>(
     m_Controls->labelSetWidget, &QmitkLabelSetWidget::ResetAllTableWidgetItems);
   workingImage->GetActiveLabelSet()->RemoveLabelEvent += mitk::MessageDelegate<QmitkLabelSetWidget>(
     m_Controls->labelSetWidget, &QmitkLabelSetWidget::ResetAllTableWidgetItems);
   workingImage->GetActiveLabelSet()->ModifyLabelEvent += mitk::MessageDelegate<QmitkLabelSetWidget>(
     m_Controls->labelSetWidget, &QmitkLabelSetWidget::UpdateAllTableWidgetItems);
   workingImage->GetActiveLabelSet()->AllLabelsModifiedEvent += mitk::MessageDelegate<QmitkLabelSetWidget>(
     m_Controls->labelSetWidget, &QmitkLabelSetWidget::UpdateAllTableWidgetItems);
   workingImage->GetActiveLabelSet()->ActiveLabelEvent += mitk::MessageDelegate1<QmitkLabelSetWidget,
     mitk::Label::PixelType>(m_Controls->labelSetWidget, &QmitkLabelSetWidget::SelectLabelByPixelValue);
 
   // Removed in T27851 to have a chance to react to AfterChangeLayerEvent. Did it brake something?
   // workingImage->BeforeChangeLayerEvent += mitk::MessageDelegate<QmitkMultiLabelSegmentationView>(
   //   this, &QmitkMultiLabelSegmentationView::OnLooseLabelSetConnection);
 
   workingImage->AfterChangeLayerEvent += mitk::MessageDelegate<QmitkSegmentationView>(
     this, &QmitkSegmentationView::UpdateGUI);
 }
 
 void QmitkSegmentationView::OnLooseLabelSetConnection()
 {
   if (m_WorkingNode.IsNull())
   {
     return;
   }
 
   auto workingImage = dynamic_cast<mitk::LabelSetImage*>(m_WorkingNode->GetData());
   if (nullptr == workingImage)
   {
     return;
   }
 
   // Reset LabelSetWidget Events
   workingImage->GetActiveLabelSet()->AddLabelEvent -= mitk::MessageDelegate<QmitkLabelSetWidget>(
     m_Controls->labelSetWidget, &QmitkLabelSetWidget::ResetAllTableWidgetItems);
   workingImage->GetActiveLabelSet()->RemoveLabelEvent -= mitk::MessageDelegate<QmitkLabelSetWidget>(
     m_Controls->labelSetWidget, &QmitkLabelSetWidget::ResetAllTableWidgetItems);
   workingImage->GetActiveLabelSet()->ModifyLabelEvent -= mitk::MessageDelegate<QmitkLabelSetWidget>(
     m_Controls->labelSetWidget, &QmitkLabelSetWidget::UpdateAllTableWidgetItems);
   workingImage->GetActiveLabelSet()->AllLabelsModifiedEvent -= mitk::MessageDelegate<QmitkLabelSetWidget>(
     m_Controls->labelSetWidget, &QmitkLabelSetWidget::UpdateAllTableWidgetItems);
   workingImage->GetActiveLabelSet()->ActiveLabelEvent -= mitk::MessageDelegate1<QmitkLabelSetWidget,
     mitk::Label::PixelType>(m_Controls->labelSetWidget, &QmitkLabelSetWidget::SelectLabelByPixelValue);
 
   // Removed in T27851 to have a chance to react to AfterChangeLayerEvent. Did it brake something?
   // workingImage->BeforeChangeLayerEvent -= mitk::MessageDelegate<QmitkMultiLabelSegmentationView>(
   //   this, &QmitkMultiLabelSegmentationView::OnLooseLabelSetConnection);
 
   workingImage->AfterChangeLayerEvent -= mitk::MessageDelegate<QmitkSegmentationView>(
     this, &QmitkSegmentationView::UpdateGUI);
 }
 
 void QmitkSegmentationView::ApplyDisplayOptions()
 {
   if (nullptr == m_Parent)
   {
     return;
   }
 
   if (nullptr == m_Controls)
   {
     return; // might happen on initialization (preferences loaded)
   }
 
   mitk::DataStorage::SetOfObjects::ConstPointer allImages = this->GetDataStorage()->GetSubset(m_SegmentationPredicate);
   for (mitk::DataStorage::SetOfObjects::const_iterator iter = allImages->begin(); iter != allImages->end(); ++iter)
   {
     this->ApplyDisplayOptions(*iter);
   }
 
   mitk::RenderingManager::GetInstance()->RequestUpdateAll();
 }
 
 void QmitkSegmentationView::ApplyDisplayOptions(mitk::DataNode* node)
 {
   if (nullptr == node)
   {
     return;
   }
 
   auto labelSetImage = dynamic_cast<mitk::LabelSetImage*>(node->GetData());
   if (nullptr != labelSetImage)
   {
     // node is a multi label segmentation
     // its outline property can be set in the segmentation preference page
     node->SetProperty("labelset.contour.active", mitk::BoolProperty::New(m_DrawOutline));
 
     // force render window update to show outline
     node->GetData()->Modified();
   }
   else if (nullptr != node->GetData())
   {
     // node is a legacy binary segmentation
     bool isBinary = false;
     node->GetBoolProperty("binary", isBinary);
     if (isBinary)
     {
       node->SetProperty("outline binary", mitk::BoolProperty::New(m_DrawOutline));
       node->SetProperty("outline width", mitk::FloatProperty::New(2.0));
       // force render window update to show outline
       node->GetData()->Modified();
     }
   }
 }
 
 void QmitkSegmentationView::OnContourMarkerSelected(const mitk::DataNode* node)
 {
   QmitkRenderWindow* selectedRenderWindow = nullptr;
   auto* renderWindowPart = this->GetRenderWindowPart(mitk::WorkbenchUtil::OPEN);
   auto* axialRenderWindow = renderWindowPart->GetQmitkRenderWindow("axial");
   auto* sagittalRenderWindow = renderWindowPart->GetQmitkRenderWindow("sagittal");
   auto* coronalRenderWindow = renderWindowPart->GetQmitkRenderWindow("coronal");
   auto* threeDRenderWindow = renderWindowPart->GetQmitkRenderWindow("3d");
   bool PlanarFigureInitializedWindow = false;
 
   // find initialized renderwindow
   if (node->GetBoolProperty("PlanarFigureInitializedWindow",
     PlanarFigureInitializedWindow, axialRenderWindow->GetRenderer()))
   {
     selectedRenderWindow = axialRenderWindow;
   }
   if (!selectedRenderWindow && node->GetBoolProperty(
     "PlanarFigureInitializedWindow", PlanarFigureInitializedWindow,
     sagittalRenderWindow->GetRenderer()))
   {
     selectedRenderWindow = sagittalRenderWindow;
   }
   if (!selectedRenderWindow && node->GetBoolProperty(
     "PlanarFigureInitializedWindow", PlanarFigureInitializedWindow,
     coronalRenderWindow->GetRenderer()))
   {
     selectedRenderWindow = coronalRenderWindow;
   }
   if (!selectedRenderWindow && node->GetBoolProperty(
     "PlanarFigureInitializedWindow", PlanarFigureInitializedWindow,
     threeDRenderWindow->GetRenderer()))
   {
     selectedRenderWindow = threeDRenderWindow;
   }
 
   // make node visible
   if (nullptr != selectedRenderWindow)
   {
     std::string nodeName = node->GetName();
     unsigned int t = nodeName.find_last_of(" ");
     unsigned int id = atof(nodeName.substr(t + 1).c_str()) - 1;
 
     ctkPluginContext* context = mitk::PluginActivator::getContext();
     ctkServiceReference ppmRef = context->getServiceReference<mitk::PlanePositionManagerService>();
     mitk::PlanePositionManagerService* service = context->getService<mitk::PlanePositionManagerService>(ppmRef);
     selectedRenderWindow->GetSliceNavigationController()->ExecuteOperation(service->GetPlanePosition(id));
     context->ungetService(ppmRef);
 
     selectedRenderWindow->GetRenderer()->GetCameraController()->Fit();
     mitk::RenderingManager::GetInstance()->RequestUpdateAll();
   }
 }
 
 void QmitkSegmentationView::OnSelectionChanged(berry::IWorkbenchPart::Pointer /*part*/, const QList<mitk::DataNode::Pointer>& nodes)
 {
   if (0 == nodes.size())
   {
     return;
   }
 
   std::string markerName = "Position";
   unsigned int numberOfNodes = nodes.size();
   std::string nodeName = nodes.at(0)->GetName();
   if ((numberOfNodes == 1) && (nodeName.find(markerName) == 0))
   {
     this->OnContourMarkerSelected(nodes.at(0));
     return;
   }
 }
 
 void QmitkSegmentationView::ResetMouseCursor()
 {
   if (m_MouseCursorSet)
   {
     mitk::ApplicationCursor::GetInstance()->PopCursor();
     m_MouseCursorSet = false;
   }
 }
 
 void QmitkSegmentationView::SetMouseCursor(const us::ModuleResource& resource, int hotspotX, int hotspotY)
 {
   // Remove previously set mouse cursor
   if (m_MouseCursorSet)
   {
     this->ResetMouseCursor();
   }
 
   if (resource)
   {
     us::ModuleResourceStream cursor(resource, std::ios::binary);
     mitk::ApplicationCursor::GetInstance()->PushCursor(cursor, hotspotX, hotspotY);
     m_MouseCursorSet = true;
   }
 }
 
 void QmitkSegmentationView::UpdateGUI()
 {
   mitk::DataNode* referenceNode = m_ToolManager->GetReferenceData(0);
   bool hasReferenceNode = referenceNode != nullptr;
 
   mitk::DataNode* workingNode = m_ToolManager->GetWorkingData(0);
   bool hasWorkingNode = workingNode != nullptr;
 
   m_Controls->newSegmentationButton->setEnabled(false);
 
   if (hasReferenceNode)
   {
     m_Controls->newSegmentationButton->setEnabled(true);
   }
 
   if (hasWorkingNode && hasReferenceNode)
   {
     int layer = -1;
     referenceNode->GetIntProperty("layer", layer);
     workingNode->SetIntProperty("layer", layer + 1);
   }
 
   m_Controls->layersWidget->UpdateGUI();
   m_Controls->labelsWidget->UpdateGUI();
 
   this->ValidateSelectionInput();
 }
 
 void QmitkSegmentationView::ValidateSelectionInput()
 {
   this->UpdateWarningLabel("");
 
   m_Controls->layersWidget->setEnabled(false);
   m_Controls->labelsWidget->setEnabled(false);
   m_Controls->labelSetWidget->setEnabled(false);
 
   // the argument is actually not used
   // enable status depends on the tool manager selection
   m_Controls->toolSelectionBox2D->setEnabled(false);
   m_Controls->toolSelectionBox3D->setEnabled(false);
   m_Controls->slicesInterpolator->setEnabled(false);
   m_Controls->interpolatorWarningLabel->hide();
 
   mitk::DataNode* referenceNode = m_Controls->referenceNodeSelector->GetSelectedNode();
   mitk::DataNode* workingNode = m_Controls->workingNodeSelector->GetSelectedNode();
 
   if (nullptr == referenceNode)
   {
     return;
   }
 
   if (nullptr == workingNode)
   {
     return;
   }
 
   mitk::IRenderWindowPart* renderWindowPart = this->GetRenderWindowPart();
   auto workingNodeIsVisible = renderWindowPart &&
     workingNode->IsVisible(renderWindowPart->GetQmitkRenderWindow("axial")->GetRenderer());
   if (!workingNodeIsVisible)
   {
     this->UpdateWarningLabel(tr("The selected segmentation is currently not visible!"));
     return;
   }
 
   /*
   * Here we check whether the geometry of the selected segmentation image is aligned with the worldgeometry.
   * At the moment it is not supported to use a geometry different from the selected image for reslicing.
   * For further information see Bug 16063
   */
   const mitk::BaseGeometry* workingNodeGeo = workingNode->GetData()->GetGeometry();
   const mitk::BaseGeometry* worldGeo =
     renderWindowPart->GetQmitkRenderWindow("3d")->GetSliceNavigationController()->GetCurrentGeometry3D();
   if (nullptr != workingNodeGeo && nullptr != worldGeo)
   {
-    if (mitk::Equal(*workingNodeGeo->GetBoundingBox(), *worldGeo->GetBoundingBox(), mitk::eps, true))
+    if (/*mitk::Equal(*workingNodeGeo->GetBoundingBox(), *worldGeo->GetBoundingBox(), mitk::eps, true)*/true)
     {
       m_ToolManager->SetReferenceData(referenceNode);
       m_ToolManager->SetWorkingData(workingNode);
       m_Controls->layersWidget->setEnabled(true);
       m_Controls->labelsWidget->setEnabled(true);
       m_Controls->labelSetWidget->setEnabled(true);
       m_Controls->toolSelectionBox2D->setEnabled(true);
       m_Controls->toolSelectionBox3D->setEnabled(true);
 
       auto labelSetImage = dynamic_cast<mitk::LabelSetImage*>(workingNode->GetData());
       if (nullptr != labelSetImage)
       {
         int numberOfLabels = labelSetImage->GetNumberOfLabels(labelSetImage->GetActiveLayer());
         if (2 == numberOfLabels) // fix for T27319: exterior is label 0, first label is label 1
         {
           m_Controls->slicesInterpolator->setEnabled(true);
         }
         else
         {
           m_Controls->interpolatorWarningLabel->show();
           m_Controls->interpolatorWarningLabel->setText("<font color=\"red\">Interpolation only works for single label segmentations.</font>");
         }
       }
       return;
     }
   }
 
   m_ToolManager->SetReferenceData(referenceNode);
   m_ToolManager->SetWorkingData(nullptr);
   this->UpdateWarningLabel(tr("Please perform a reinit on the segmentation image!"));
 }
 
 void QmitkSegmentationView::UpdateWarningLabel(QString text)
 {
   if (text.size() == 0)
   {
     m_Controls->selectionWarningLabel->hide();
   }
   else
   {
     m_Controls->selectionWarningLabel->show();
     m_Controls->selectionWarningLabel->setText("<font color=\"red\">" + text + "</font>");
   }
 }
diff --git a/Plugins/org.mitk.gui.qt.segmentation/src/internal/QmitkSegmentationView.h b/Plugins/org.mitk.gui.qt.segmentation/src/internal/QmitkSegmentationView.h
index 0cb875c30c..4e17fd4f66 100644
--- a/Plugins/org.mitk.gui.qt.segmentation/src/internal/QmitkSegmentationView.h
+++ b/Plugins/org.mitk.gui.qt.segmentation/src/internal/QmitkSegmentationView.h
@@ -1,154 +1,204 @@
 /*============================================================================
 
 The Medical Imaging Interaction Toolkit (MITK)
 
 Copyright (c) German Cancer Research Center (DKFZ)
 All rights reserved.
 
 Use of this source code is governed by a 3-clause BSD license that can be
 found in the LICENSE file.
 
 ============================================================================*/
 
 #ifndef QMITKSEGMENTATIONVIEW_H
 #define QMITKSEGMENTATIONVIEW_H
 
 #include "ui_QmitkSegmentationViewControls.h"
 
 #include <QmitkAbstractView.h>
 #include <mitkIRenderWindowPartListener.h>
 
 #include <berryIBerryPreferences.h>
 
+#include <mitkSegmentationInteractor.h>
+
+// mitk annotation
+#include <mitkLogoAnnotation.h>
+
 /**
 * @brief The segmentation view provides a set of tool to use different segmentation algorithms.
 *        It provides two selection widgets to load an image node and a segmentation node
 *        on which to perform the segmentation. Creating new segmentation nodes is also possible.
 *        The available segmentation tools are grouped into "2D"- and "3D"-tools.
 *
 *        Most segmentation tools / algorithms need some kind of user interaction, where the
 *        user is asked to draw something in the image display or set some seed points / start values.
 *        The tools also often provide additional propeties so that a user can modify the
 *        algorithm's behavior.
 *
 *        This class additionally provides options to work with different layers (create new layers,
 *        switch between layers).
 *        Moreover, a multilabel widget displays all the existing labels of a multilabel segmentation
 *        for the currently active layer.
 *        The multilabel widget allows to control the labels by creatin new one, removing existing ones,
 *        showing / hiding single labels, merging labels, (re-)naming them etc.
 *
 *        Additionally the view provides an option to create "2D"- and "3D"-interpolations between
 *        neighboring segmentation masks on unsegmented slices.
 *        Interpolation for multilabel segmentations is currently not implemented.
 */
 class QmitkSegmentationView : public QmitkAbstractView, public mitk::IRenderWindowPartListener
 {
   Q_OBJECT
 
 public:
 
   static const std::string VIEW_ID;
 
   QmitkSegmentationView();
   ~QmitkSegmentationView() override;
 
 private Q_SLOTS:
 
   // reaction to the selection of a new reference image in the selection widget
   void OnReferenceSelectionChanged(QList<mitk::DataNode::Pointer> nodes);
 
   // reaction to the selection of a new segmentation image in the selection widget
   void OnSegmentationSelectionChanged(QList<mitk::DataNode::Pointer> nodes);
 
   // reaction to the shortcut ("CTRL+H") for toggling the visibility of the working node
   void OnVisibilityShortcutActivated();
 
   // reaction to the shortcut ("CTRL+L") for iterating over all labels
   void OnLabelToggleShortcutActivated();
 
   // reaction to the button "New segmentation"
   void OnNewSegmentation();
 
   void OnManualTool2DSelected(int id);
 
   void OnShowMarkerNodes(bool);
 
   void OnLayersChanged();
 
   void OnShowLabelTable(bool);
 
   void OnGoToLabel(const mitk::Point3D &pos);
 
   void OnLabelSetWidgetReset();
 
 private:
 
   void CreateQtPartControl(QWidget* parent) override;
 
   void SetFocus() override {}
+  /**
+  * @brief Add an observer for the mitk::Tool::ToolEnteredRenderWindow-event
+  *        to the currently active tool.
+  *
+  * The active tool is retrieved from the tool manager.
+  * If the event is not already observerd by the active tool,
+  * an observer for this event is added, using a 'ReceptorMemberCommand'.
+  * This command uses 'ValidateRendererGeometry' as a callback function,
+  * and will call this function, if the event is invoked.
+  */
+  void ActiveToolChanged();
+  /**
+  * @brief Test whether the geometry of the reference image
+  *        fits the world geometry of the respective renderer.
+  *
+  * The respective renderer is retrieved from the given event, which
+  * needs to be a 'ToolEnteredRenderWindow'. This event provides not only
+  * the sending base renderer but also a bool that indicates whether
+  * the mouse cursor entered or left the base renderer.
+  * This information is used to compare the renderer's world geometry
+  * with the oriented time geometry of the current reference image.
+  * If the geometries align, the renderer is not blocked anymore and the
+  * view's warning message is removed.
+  * If the geometries do not align, 'BlockRenderer' is called and a
+  * warning message is added to the top of the plugin view.
+  *
+  * @param event   The observed mitk::Tool::ToolEnteredRenderWindow-event.
+  */
+  void ValidateRendererGeometry(const itk::EventObject& event);
+  /**
+  * @brief Block a base renderer for segmentation.
+  *
+  * This function will add an overlay image to the given base renderer
+  * to indicate that the renderer should not be used for interactive
+  * image segmentation.
+  *
+  * @param baseRenderer   The base renderer to "block"
+  * @param blocked        If true, the overlay image will be added.
+  *                       If false, the overlay image will be removed.
+  */
+  void BlockRenderer(mitk::BaseRenderer* baseRenderer, bool blocked);
 
   void RenderWindowPartActivated(mitk::IRenderWindowPart* renderWindowPart) override;
   void RenderWindowPartDeactivated(mitk::IRenderWindowPart* renderWindowPart) override;
 
   void OnPreferencesChanged(const berry::IBerryPreferences* prefs) override;
 
   void NodeAdded(const mitk::DataNode* node) override;
 
   void NodeRemoved(const mitk::DataNode* node) override;
 
   void OnEstablishLabelSetConnection();
 
   void OnLooseLabelSetConnection();
 
   // make sure all images / segmentations look according to the user preference settings
   void ApplyDisplayOptions();
 
   // decorates a DataNode according to the user preference settings
   void ApplyDisplayOptions(mitk::DataNode* node);
 
   // If a contourmarker is selected, the plane in the related widget will be reoriented according to the marker`s geometry
   void OnContourMarkerSelected(const mitk::DataNode* node);
 
   void OnSelectionChanged(berry::IWorkbenchPart::Pointer part, const QList<mitk::DataNode::Pointer> &nodes) override;
 
   void ResetMouseCursor();
 
   void SetMouseCursor(const us::ModuleResource&, int hotspotX, int hotspotY);
 
   void UpdateGUI();
 
   void ValidateSelectionInput();
 
   void UpdateWarningLabel(QString text);
 
   std::string GetDefaultLabelSetPreset() const;
 
   QWidget* m_Parent;
 
   Ui::QmitkSegmentationViewControls* m_Controls;
 
   mitk::IRenderWindowPart* m_RenderWindowPart;
 
   mitk::ToolManager* m_ToolManager;
 
   mitk::DataNode::Pointer m_ReferenceNode;
   mitk::DataNode::Pointer m_WorkingNode;
 
+  mitk::SegmentationInteractor::Pointer m_SegmentationInteractor;
+
   typedef std::map<mitk::DataNode*, unsigned long> NodeTagMapType;
   NodeTagMapType m_WorkingDataObserverTags;
   NodeTagMapType m_ReferenceDataObserverTags;
   unsigned int m_RenderingManagerObserverTag;
 
   mitk::NodePredicateAnd::Pointer m_ReferencePredicate;
   mitk::NodePredicateAnd::Pointer m_SegmentationPredicate;
 
+  mitk::LogoAnnotation::Pointer m_RendererAnnotation;
+
   bool m_DrawOutline;
   bool m_SelectionMode;
   bool m_MouseCursorSet;
 
   QString m_LabelSetPresetPreference;
   bool m_DefaultLabelNaming;
 };
 
 #endif // QMITKSEGMENTATIONVIEW_H