diff --git a/Plugins/org.mitk.gui.qt.moviemaker/src/internal/QmitkMovieMakerView.cpp b/Plugins/org.mitk.gui.qt.moviemaker/src/internal/QmitkMovieMakerView.cpp
index c347f2399f..59a7a6f85e 100644
--- a/Plugins/org.mitk.gui.qt.moviemaker/src/internal/QmitkMovieMakerView.cpp
+++ b/Plugins/org.mitk.gui.qt.moviemaker/src/internal/QmitkMovieMakerView.cpp
@@ -1,681 +1,676 @@
 /*============================================================================
 
 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 "QmitkMovieMakerView.h"
 #include <ui_QmitkMovieMakerView.h>
 
 #include "QmitkAnimationItemDelegate.h"
 #include "QmitkOrbitAnimationItem.h"
 #include "QmitkOrbitAnimationWidget.h"
 #include "QmitkSliceAnimationItem.h"
 #include "QmitkSliceAnimationWidget.h"
 #include "QmitkTimeSliceAnimationItem.h"
 #include "QmitkTimeSliceAnimationWidget.h"
 
 #include <mitkCoreServices.h>
 #include <mitkIPreferencesService.h>
 #include <mitkIPreferences.h>
 
 #include <mitkGL.h>
 
 #include <QmitkFFmpegWriter.h>
 
 #include <QFileDialog>
 #include <QMenu>
 #include <QMessageBox>
 #include <QTimer>
 
 #include <array>
 
 namespace
 {
   QmitkAnimationItem* CreateDefaultAnimation(const QString& widgetKey)
   {
     if (widgetKey == "Orbit")
       return new QmitkOrbitAnimationItem;
 
     if (widgetKey == "Slice")
       return new QmitkSliceAnimationItem;
 
     if (widgetKey == "Time")
       return new QmitkTimeSliceAnimationItem;
 
     return nullptr;
   }
 
   QString GetFFmpegPath()
   {
     auto* preferences = mitk::CoreServices::GetPreferencesService()->GetSystemPreferences()->Node("/org.mitk.gui.qt.ext.externalprograms");
 
     return preferences != nullptr
       ? QString::fromStdString(preferences->Get("ffmpeg", ""))
       : QString();
   }
 
   void ReadPixels(std::unique_ptr<unsigned char[]>& frame, vtkRenderWindow* renderWindow, int x, int y, int width, int height)
   {
     if (nullptr == renderWindow)
       return;
 
     renderWindow->MakeCurrent();
     glReadPixels(x, y, width, height, GL_RGB, GL_UNSIGNED_BYTE, frame.get());
   }
 }
 
 const std::string QmitkMovieMakerView::VIEW_ID = "org.mitk.views.moviemaker";
 
 QmitkMovieMakerView::QmitkMovieMakerView()
   : m_FFmpegWriter(nullptr),
+    m_Parent(nullptr),
     m_Ui(new Ui::QmitkMovieMakerView),
     m_AnimationModel(nullptr),
     m_AddAnimationMenu(nullptr),
     m_RecordMenu(nullptr),
     m_Timer(nullptr),
     m_TotalDuration(0.0),
     m_NumFrames(0),
     m_CurrentFrame(0)
 {
 }
 
 QmitkMovieMakerView::~QmitkMovieMakerView()
 {
 }
 
 void QmitkMovieMakerView::CreateQtPartControl(QWidget* parent)
 {
   m_FFmpegWriter = new QmitkFFmpegWriter(parent);
+  m_Parent = parent;
 
   m_Ui->setupUi(parent);
 
   this->InitializeAnimationWidgets();
   this->InitializeAnimationTreeViewWidgets();
   this->InitializePlaybackAndRecordWidgets();
   this->InitializeTimer(parent);
 
   m_Ui->animationWidgetGroupBox->setVisible(false);
 }
 
 void QmitkMovieMakerView::InitializeAnimationWidgets()
 {
   m_AnimationWidgets["Orbit"] = new QmitkOrbitAnimationWidget;
   m_AnimationWidgets["Slice"] = new QmitkSliceAnimationWidget;
   m_AnimationWidgets["Time"] = new QmitkTimeSliceAnimationWidget;
 
   for (const auto& widget : m_AnimationWidgets)
   {
     if (nullptr != widget.second)
     {
       widget.second->setVisible(false);
       m_Ui->animationWidgetGroupBoxLayout->addWidget(widget.second);
     }
   }
 
   this->ConnectAnimationWidgets();
 }
 
 void QmitkMovieMakerView::InitializeAnimationTreeViewWidgets()
 {
   this->InitializeAnimationModel();
   this->InitializeAddAnimationMenu();
   this->ConnectAnimationTreeViewWidgets();
 }
 
 void QmitkMovieMakerView::InitializePlaybackAndRecordWidgets()
 {
   this->InitializeRecordMenu();
   this->ConnectPlaybackAndRecordWidgets();
 }
 
 void QmitkMovieMakerView::InitializeAnimationModel()
 {
   m_AnimationModel = new QStandardItemModel(m_Ui->animationTreeView);
   m_AnimationModel->setHorizontalHeaderLabels(QStringList() << "Animation" << "Timeline");
 
   m_Ui->animationTreeView->setModel(m_AnimationModel);
   m_Ui->animationTreeView->setItemDelegate(new QmitkAnimationItemDelegate(m_Ui->animationTreeView));
 }
 
 void QmitkMovieMakerView::InitializeAddAnimationMenu()
 {
   m_AddAnimationMenu = new QMenu(m_Ui->addAnimationButton);
 
   for(const auto& widget : m_AnimationWidgets)
     m_AddAnimationMenu->addAction(widget.first);
 }
 
 void QmitkMovieMakerView::InitializeRecordMenu()
 {
   std::array<std::pair<QString, QString>, 4> renderWindows = {
     std::make_pair(QStringLiteral("Axial"), QStringLiteral("stdmulti.widget0")),
     std::make_pair(QStringLiteral("Sagittal"), QStringLiteral("stdmulti.widget1")),
     std::make_pair(QStringLiteral("Coronal"), QStringLiteral("stdmulti.widget2")),
     std::make_pair(QStringLiteral("3D"), QStringLiteral("stdmulti.widget3"))
   };
 
   m_RecordMenu = new QMenu(m_Ui->recordButton);
 
   for(const auto& renderWindow : renderWindows)
   {
     auto* action = new QAction(m_RecordMenu);
     action->setText(renderWindow.first);
     action->setData(renderWindow.second);
 
     m_RecordMenu->addAction(action);
   }
 }
 
 void QmitkMovieMakerView::InitializeTimer(QWidget* parent)
 {
   m_Timer = new QTimer(parent);
 
   this->OnFPSSpinBoxValueChanged(m_Ui->fpsSpinBox->value());
   this->ConnectTimer();
 }
 
 void QmitkMovieMakerView::ConnectAnimationTreeViewWidgets()
 {
   connect(m_AnimationModel, &QStandardItemModel::rowsInserted, this, &QmitkMovieMakerView::OnAnimationTreeViewRowsInserted);
   connect(m_AnimationModel, &QStandardItemModel::rowsRemoved, this, &QmitkMovieMakerView::OnAnimationTreeViewRowsRemoved);
   connect(m_Ui->animationTreeView->selectionModel(), &QItemSelectionModel::selectionChanged, this, &QmitkMovieMakerView::OnAnimationTreeViewSelectionChanged);
   connect(m_Ui->moveAnimationUpButton, &QToolButton::clicked, this, &QmitkMovieMakerView::OnMoveAnimationUpButtonClicked);
   connect(m_Ui->moveAnimationDownButton, &QToolButton::clicked, this, &QmitkMovieMakerView::OnMoveAnimationDownButtonClicked);
   connect(m_Ui->addAnimationButton, &QToolButton::clicked, this, &QmitkMovieMakerView::OnAddAnimationButtonClicked);
   connect(m_Ui->removeAnimationButton, &QToolButton::clicked, this, &QmitkMovieMakerView::OnRemoveAnimationButtonClicked);
 }
 
 void QmitkMovieMakerView::ConnectAnimationWidgets()
 {
   connect(m_Ui->startComboBox, SIGNAL(currentIndexChanged(int)), this, SLOT(OnStartComboBoxCurrentIndexChanged(int)));
   connect(m_Ui->durationSpinBox, SIGNAL(valueChanged(double)), this, SLOT(OnDurationSpinBoxValueChanged(double)));
   connect(m_Ui->delaySpinBox, SIGNAL(valueChanged(double)), this, SLOT(OnDelaySpinBoxValueChanged(double)));
 }
 
 void QmitkMovieMakerView::ConnectPlaybackAndRecordWidgets()
 {
   connect(m_Ui->playButton, &QToolButton::toggled, this, &QmitkMovieMakerView::OnPlayButtonToggled);
   connect(m_Ui->stopButton, &QToolButton::clicked, this, &QmitkMovieMakerView::OnStopButtonClicked);
   connect(m_Ui->recordButton, &QToolButton::clicked, this, &QmitkMovieMakerView::OnRecordButtonClicked);
   connect(m_Ui->fpsSpinBox, SIGNAL(valueChanged(int)), this, SLOT(OnFPSSpinBoxValueChanged(int)));
 }
 
 void QmitkMovieMakerView::ConnectTimer()
 {
   connect(m_Timer, &QTimer::timeout, this, &QmitkMovieMakerView::OnTimerTimeout);
 }
 
 void QmitkMovieMakerView::SetFocus()
 {
   m_Ui->addAnimationButton->setFocus();
 }
 
 void QmitkMovieMakerView::RenderWindowPartActivated(mitk::IRenderWindowPart* renderWindowPart)
 {
   auto multiWidgetEditor = dynamic_cast<berry::Object*>(renderWindowPart);
-  auto widget = static_cast<QWidget*>(m_Ui->verticalLayout_2->parent());
-  if (multiWidgetEditor && multiWidgetEditor->GetClassName() == "QmitkMxNMultiWidgetEditor")
-  {
-    widget->setEnabled(false);
-  }
-  else
-  {
-    widget->setEnabled(true);
-  }
+  bool isMxN = nullptr != multiWidgetEditor && multiWidgetEditor->GetClassName() == "QmitkMxNMultiWidgetEditor";
+  m_Parent->setDisabled(isMxN);
 }
 
 void QmitkMovieMakerView::RenderWindowPartDeactivated(mitk::IRenderWindowPart* /*renderWindowPart*/)
 {
 }
 
 void QmitkMovieMakerView::RenderWindowPartInputChanged(mitk::IRenderWindowPart* /*renderWindowPart*/)
 {
 }
 
 void QmitkMovieMakerView::OnMoveAnimationUpButtonClicked()
 {
   const QItemSelection selection = m_Ui->animationTreeView->selectionModel()->selection();
 
   if (!selection.isEmpty())
   {
     const int selectedRow = selection[0].top();
 
     if (selectedRow > 0)
       m_AnimationModel->insertRow(selectedRow - 1, m_AnimationModel->takeRow(selectedRow));
   }
 
   this->CalculateTotalDuration();
 }
 
 void QmitkMovieMakerView::OnMoveAnimationDownButtonClicked()
 {
   const QItemSelection selection = m_Ui->animationTreeView->selectionModel()->selection();
 
   if (!selection.isEmpty())
   {
     const int rowCount = m_AnimationModel->rowCount();
     const int selectedRow = selection[0].top();
 
     if (selectedRow < rowCount - 1)
       m_AnimationModel->insertRow(selectedRow + 1, m_AnimationModel->takeRow(selectedRow));
   }
 
   this->CalculateTotalDuration();
 }
 
 void QmitkMovieMakerView::OnAddAnimationButtonClicked()
 {
   auto action = m_AddAnimationMenu->exec(QCursor::pos());
 
   if (nullptr != action)
   {
     const auto key = action->text();
 
     m_AnimationModel->appendRow(QList<QStandardItem*>()
       << new QStandardItem(key)
       << CreateDefaultAnimation(key));
 
     m_Ui->playbackAndRecordingGroupBox->setEnabled(true);
   }
 }
 
 void QmitkMovieMakerView::OnPlayButtonToggled(bool checked)
 {
   if (checked)
   {
     m_Ui->playButton->setIcon(QIcon(":/org_mitk_icons/icons/tango/scalable/actions/media-playback-pause.svg"));
     m_Ui->playButton->repaint();
 
     m_Timer->start(static_cast<int>(1000.0 / m_Ui->fpsSpinBox->value()));
   }
   else
   {
     m_Timer->stop();
 
     m_Ui->playButton->setIcon(QIcon(":/org_mitk_icons/icons/tango/scalable/actions/media-playback-start.svg"));
     m_Ui->playButton->repaint();
   }
 }
 
 void QmitkMovieMakerView::OnStopButtonClicked()
 {
   m_Ui->playButton->setChecked(false);
   m_Ui->stopButton->setEnabled(false);
 
   m_CurrentFrame = 0;
   this->RenderCurrentFrame();
 }
 
 void QmitkMovieMakerView::OnRecordButtonClicked()
 {
   if (0 == m_NumFrames || 0.0 == m_TotalDuration)
     return;
 
   const QString ffmpegPath = GetFFmpegPath();
 
   if (ffmpegPath.isEmpty())
   {
     QMessageBox::information(nullptr, "Movie Maker",
       "<p>Set path to FFmpeg (<a href=\"https://ffmpeg.org\">ffmpeg.org</a>) in preferences "
       "(Window -> Preferences... (Ctrl+P) -> External Programs) "
       "to be able to record your movies to video files.</p>");
     return;
   }
 
   m_FFmpegWriter->SetFFmpegPath(GetFFmpegPath());
 
   auto action = m_RecordMenu->exec(QCursor::pos());
 
   if (nullptr == action)
     return;
 
   auto renderWindow = mitk::BaseRenderer::GetRenderWindowByName(action->data().toString().toStdString());
 
   if (nullptr == renderWindow)
     return;
 
   const int border = 3;
   const int x = border;
   const int y = border;
   int width = renderWindow->GetSize()[0] - border * 2;
   int height = renderWindow->GetSize()[1] - border * 2;
 
   if (width & 1)
     --width;
 
   if (height & 1)
     --height;
 
   if (width < 16 || height < 16)
     return;
 
   m_FFmpegWriter->SetSize(width, height);
   m_FFmpegWriter->SetFramerate(m_Ui->fpsSpinBox->value());
 
   QString saveFileName = QFileDialog::getSaveFileName(nullptr, "Specify a filename", "", "Movie (*.mp4)");
 
   if (saveFileName.isEmpty())
     return;
 
   if(!saveFileName.endsWith(".mp4"))
     saveFileName += ".mp4";
 
   m_FFmpegWriter->SetOutputPath(saveFileName);
 
   try
   {
     auto frame = std::make_unique<unsigned char[]>(width * height * 3);
     m_FFmpegWriter->Start();
 
     for (m_CurrentFrame = 0; m_CurrentFrame < m_NumFrames; ++m_CurrentFrame)
     {
       this->RenderCurrentFrame();
       ReadPixels(frame, renderWindow, x, y, width, height);
       m_FFmpegWriter->WriteFrame(frame.get());
     }
 
     m_FFmpegWriter->Stop();
 
     m_CurrentFrame = 0;
     this->RenderCurrentFrame();
   }
   catch (const mitk::Exception& exception)
   {
     m_CurrentFrame = 0;
     this->RenderCurrentFrame();
 
     QMessageBox::critical(nullptr, "Movie Maker", exception.GetDescription());
   }
 }
 
 void QmitkMovieMakerView::OnRemoveAnimationButtonClicked()
 {
   const QItemSelection selection = m_Ui->animationTreeView->selectionModel()->selection();
 
   if (!selection.isEmpty())
     m_AnimationModel->removeRow(selection[0].top());
 }
 
 void QmitkMovieMakerView::OnAnimationTreeViewRowsInserted(const QModelIndex& parent, int start, int)
 {
   this->CalculateTotalDuration();
 
   m_Ui->animationTreeView->selectionModel()->select(
     m_AnimationModel->index(start, 0, parent),
     QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
 }
 
 void QmitkMovieMakerView::OnAnimationTreeViewRowsRemoved(const QModelIndex&, int, int)
 {
   this->CalculateTotalDuration();
   this->UpdateWidgets();
 }
 
 void QmitkMovieMakerView::OnAnimationTreeViewSelectionChanged(const QItemSelection&, const QItemSelection&)
 {
   this->UpdateWidgets();
 }
 
 void QmitkMovieMakerView::OnStartComboBoxCurrentIndexChanged(int index)
 {
   QmitkAnimationItem* item = this->GetSelectedAnimationItem();
 
   if (item != nullptr)
   {
     item->SetStartWithPrevious(index);
     this->RedrawTimeline();
     this->CalculateTotalDuration();
   }
 }
 
 void QmitkMovieMakerView::OnDurationSpinBoxValueChanged(double value)
 {
   QmitkAnimationItem* item = this->GetSelectedAnimationItem();
 
   if (item != nullptr)
   {
     item->SetDuration(value);
     this->RedrawTimeline();
     this->CalculateTotalDuration();
   }
 }
 
 void QmitkMovieMakerView::OnDelaySpinBoxValueChanged(double value)
 {
   QmitkAnimationItem* item = this->GetSelectedAnimationItem();
 
   if (item != nullptr)
   {
     item->SetDelay(value);
     this->RedrawTimeline();
     this->CalculateTotalDuration();
   }
 }
 
 void QmitkMovieMakerView::OnFPSSpinBoxValueChanged(int value)
 {
   this->CalculateTotalDuration();
   m_Timer->setInterval(static_cast<int>(1000.0 / value));
 }
 
 void QmitkMovieMakerView::OnTimerTimeout()
 {
   this->RenderCurrentFrame();
 
   m_CurrentFrame = std::min(m_NumFrames, m_CurrentFrame + 1);
 
   if (m_CurrentFrame >= m_NumFrames)
   {
     m_Ui->playButton->setChecked(false);
 
     m_CurrentFrame = 0;
     this->RenderCurrentFrame();
   }
 
   m_Ui->stopButton->setEnabled(m_CurrentFrame != 0);
 }
 
 void QmitkMovieMakerView::RenderCurrentFrame()
 {
   const double deltaT = m_TotalDuration / (m_NumFrames - 1);
   const auto activeAnimations = this->GetActiveAnimations(m_CurrentFrame * deltaT);
 
   for (const auto& animation : activeAnimations)
   {
     const auto nextActiveAnimations = this->GetActiveAnimations((m_CurrentFrame + 1) * deltaT);
     bool lastFrameForAnimation = true;
 
     for (const auto& nextAnimation : nextActiveAnimations)
     {
       if (nextAnimation.first == animation.first)
       {
         lastFrameForAnimation = false;
         break;
       }
     }
 
     animation.first->Animate(!lastFrameForAnimation
       ? animation.second
       : 1.0);
   }
 
   mitk::RenderingManager::GetInstance()->ForceImmediateUpdateAll();
 }
 
 void QmitkMovieMakerView::UpdateWidgets()
 {
   const QItemSelection selection = m_Ui->animationTreeView->selectionModel()->selection();
 
   if (selection.isEmpty())
   {
     m_Ui->moveAnimationUpButton->setEnabled(false);
     m_Ui->moveAnimationDownButton->setEnabled(false);
     m_Ui->removeAnimationButton->setEnabled(false);
     m_Ui->playbackAndRecordingGroupBox->setEnabled(false);
 
     this->HideCurrentAnimationWidget();
   }
   else
   {
     const int rowCount = m_AnimationModel->rowCount();
     const int selectedRow = selection[0].top();
 
     m_Ui->moveAnimationUpButton->setEnabled(rowCount > 1 && selectedRow != 0);
     m_Ui->moveAnimationDownButton->setEnabled(rowCount > 1 && selectedRow < rowCount - 1);
     m_Ui->removeAnimationButton->setEnabled(true);
     m_Ui->playbackAndRecordingGroupBox->setEnabled(true);
 
     this->ShowAnimationWidget(dynamic_cast<QmitkAnimationItem*>(m_AnimationModel->item(selectedRow, 1)));
   }
 
   this->UpdateAnimationWidgets();
 }
 
 void QmitkMovieMakerView::UpdateAnimationWidgets()
 {
   QmitkAnimationItem* item = this->GetSelectedAnimationItem();
 
   if (item != nullptr)
   {
     m_Ui->startComboBox->setCurrentIndex(item->GetStartWithPrevious());
     m_Ui->durationSpinBox->setValue(item->GetDuration());
     m_Ui->delaySpinBox->setValue(item->GetDelay());
 
     m_Ui->animationGroupBox->setEnabled(true);
   }
   else
   {
     m_Ui->animationGroupBox->setEnabled(false);
   }
 }
 
 void QmitkMovieMakerView::HideCurrentAnimationWidget()
 {
   if (m_Ui->animationWidgetGroupBox->isVisible())
   {
     m_Ui->animationWidgetGroupBox->setVisible(false);
 
     int numWidgets = m_Ui->animationWidgetGroupBoxLayout->count();
 
     for (int i = 0; i < numWidgets; ++i)
       m_Ui->animationWidgetGroupBoxLayout->itemAt(i)->widget()->setVisible(false);
   }
 }
 
 void QmitkMovieMakerView::ShowAnimationWidget(QmitkAnimationItem* animationItem)
 {
   this->HideCurrentAnimationWidget();
 
   if (animationItem == nullptr)
     return;
 
   const QString widgetKey = animationItem->GetWidgetKey();
   auto animationWidgetIter = m_AnimationWidgets.find(widgetKey);
   auto animationWidget = m_AnimationWidgets.end() != animationWidgetIter
     ? animationWidgetIter->second
     : nullptr;
 
   if (nullptr != animationWidget)
   {
     m_Ui->animationWidgetGroupBox->setTitle(widgetKey);
     animationWidget->SetAnimationItem(animationItem);
     animationWidget->setVisible(true);
   }
 
   m_Ui->animationWidgetGroupBox->setVisible(animationWidget != nullptr);
 }
 
 void QmitkMovieMakerView::RedrawTimeline()
 {
   if (m_AnimationModel->rowCount() > 1)
   {
     m_Ui->animationTreeView->dataChanged(
       m_AnimationModel->index(0, 1),
       m_AnimationModel->index(m_AnimationModel->rowCount() - 1, 1));
   }
 }
 
 QmitkAnimationItem* QmitkMovieMakerView::GetSelectedAnimationItem() const
 {
   const QItemSelection selection = m_Ui->animationTreeView->selectionModel()->selection();
 
   return !selection.isEmpty()
     ? dynamic_cast<QmitkAnimationItem*>(m_AnimationModel->item(selection[0].top(), 1))
     : nullptr;
 }
 
 void QmitkMovieMakerView::CalculateTotalDuration()
 {
   const int rowCount = m_AnimationModel->rowCount();
 
   double totalDuration = 0.0;
   double previousStart = 0.0;
 
   for (int i = 0; i < rowCount; ++i)
   {
    auto item = dynamic_cast<QmitkAnimationItem*>(m_AnimationModel->item(i, 1));
 
     if (nullptr == item)
       continue;
 
     if (item->GetStartWithPrevious())
     {
       totalDuration = std::max(totalDuration, previousStart + item->GetDelay() + item->GetDuration());
     }
     else
     {
       previousStart = totalDuration;
       totalDuration += item->GetDelay() + item->GetDuration();
     }
   }
 
   m_TotalDuration = totalDuration;
   m_NumFrames = static_cast<int>(totalDuration * m_Ui->fpsSpinBox->value());
 }
 
 std::vector<std::pair<QmitkAnimationItem*, double>> QmitkMovieMakerView::GetActiveAnimations(double t) const
 {
   const int rowCount = m_AnimationModel->rowCount();
 
   std::vector<std::pair<QmitkAnimationItem*, double>> activeAnimations;
 
   double totalDuration = 0.0;
   double previousStart = 0.0;
 
   for (int i = 0; i < rowCount; ++i)
   {
     QmitkAnimationItem* item = dynamic_cast<QmitkAnimationItem*>(m_AnimationModel->item(i, 1));
 
     if (item == nullptr)
       continue;
 
     if (item->GetDuration() > 0.0)
     {
       double start = item->GetStartWithPrevious()
         ? previousStart + item->GetDelay()
         : totalDuration + item->GetDelay();
 
       if (start <= t && t <= start + item->GetDuration())
         activeAnimations.emplace_back(item, (t - start) / item->GetDuration());
     }
 
     if (item->GetStartWithPrevious())
     {
       totalDuration = std::max(totalDuration, previousStart + item->GetDelay() + item->GetDuration());
     }
     else
     {
       previousStart = totalDuration;
       totalDuration += item->GetDelay() + item->GetDuration();
     }
   }
 
   return activeAnimations;
 }
diff --git a/Plugins/org.mitk.gui.qt.moviemaker/src/internal/QmitkMovieMakerView.h b/Plugins/org.mitk.gui.qt.moviemaker/src/internal/QmitkMovieMakerView.h
index 013849d9b1..e493845cfa 100644
--- a/Plugins/org.mitk.gui.qt.moviemaker/src/internal/QmitkMovieMakerView.h
+++ b/Plugins/org.mitk.gui.qt.moviemaker/src/internal/QmitkMovieMakerView.h
@@ -1,102 +1,103 @@
 /*============================================================================
 
 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 QmitkMovieMakerView_h
 #define QmitkMovieMakerView_h
 
 #include <QmitkAbstractView.h>
 #include <mitkIRenderWindowPartListener.h>
 
 #include <utility>
 #include <vector>
 
 class QmitkAnimationItem;
 class QmitkAnimationWidget;
 class QmitkFFmpegWriter;
 class QMenu;
 class QStandardItemModel;
 class QTimer;
 
 namespace Ui
 {
   class QmitkMovieMakerView;
 }
 
 class QmitkMovieMakerView : public QmitkAbstractView, public mitk::IRenderWindowPartListener
 {
   Q_OBJECT
 
 public:
   static const std::string VIEW_ID;
 
   QmitkMovieMakerView();
   ~QmitkMovieMakerView() override;
 
   void CreateQtPartControl(QWidget* parent) override;
   void SetFocus() override;
 
   void RenderWindowPartActivated(mitk::IRenderWindowPart* renderWindowPart) override;
   void RenderWindowPartDeactivated(mitk::IRenderWindowPart* renderWindowPart) override;
   void RenderWindowPartInputChanged(mitk::IRenderWindowPart* renderWindowPart) override;
 
 private slots:
   void OnMoveAnimationUpButtonClicked();
   void OnMoveAnimationDownButtonClicked();
   void OnAddAnimationButtonClicked();
   void OnRemoveAnimationButtonClicked();
   void OnAnimationTreeViewRowsInserted(const QModelIndex& parent, int start, int end);
   void OnAnimationTreeViewRowsRemoved(const QModelIndex& parent, int start, int end);
   void OnAnimationTreeViewSelectionChanged(const QItemSelection& selected, const QItemSelection& deselected);
   void OnStartComboBoxCurrentIndexChanged(int index);
   void OnDurationSpinBoxValueChanged(double value);
   void OnDelaySpinBoxValueChanged(double value);
   void OnPlayButtonToggled(bool checked);
   void OnStopButtonClicked();
   void OnRecordButtonClicked();
   void OnFPSSpinBoxValueChanged(int value);
   void OnTimerTimeout();
 
 private:
   void InitializeAnimationWidgets();
   void InitializeAnimationTreeViewWidgets();
   void InitializeAnimationModel();
   void InitializeAddAnimationMenu();
   void InitializePlaybackAndRecordWidgets();
   void InitializeRecordMenu();
   void InitializeTimer(QWidget* parent);
   void ConnectAnimationTreeViewWidgets();
   void ConnectAnimationWidgets();
   void ConnectPlaybackAndRecordWidgets();
   void ConnectTimer();
   void RenderCurrentFrame();
   void UpdateWidgets();
   void UpdateAnimationWidgets();
   void HideCurrentAnimationWidget();
   void ShowAnimationWidget(QmitkAnimationItem* animationItem);
   void RedrawTimeline();
   void CalculateTotalDuration();
   QmitkAnimationItem* GetSelectedAnimationItem() const;
   std::vector<std::pair<QmitkAnimationItem*, double>> GetActiveAnimations(double t) const;
 
   QmitkFFmpegWriter* m_FFmpegWriter;
+  QWidget* m_Parent;
   Ui::QmitkMovieMakerView* m_Ui;
   QStandardItemModel* m_AnimationModel;
   std::map<QString, QmitkAnimationWidget*> m_AnimationWidgets;
   QMenu* m_AddAnimationMenu;
   QMenu* m_RecordMenu;
   QTimer* m_Timer;
   double m_TotalDuration;
   int m_NumFrames;
   int m_CurrentFrame;
 };
 
 #endif