diff --git a/Modules/QtWidgets/CMakeLists.txt b/Modules/QtWidgets/CMakeLists.txt
index 8800bae003..8d685ebd5c 100644
--- a/Modules/QtWidgets/CMakeLists.txt
+++ b/Modules/QtWidgets/CMakeLists.txt
@@ -1,8 +1,9 @@
 MITK_CREATE_MODULE(
   INCLUDE_DIRS PRIVATE resource # for xpm includes
   DEPENDS MitkPlanarFigure MitkAnnotation
   PACKAGE_DEPENDS
     PUBLIC VTK|GUISupportQt+RenderingQt Qt5|Widgets+OpenGL+Core CTK|CTKWidgets
+    PRIVATE nlohmann_json
 )
 
 add_subdirectory(test)
diff --git a/Modules/QtWidgets/src/QmitkMultiWidgetLayoutSelectionWidget.ui b/Modules/QtWidgets/src/QmitkMultiWidgetLayoutSelectionWidget.ui
index f79ff50dc6..391d5b8cb2 100644
--- a/Modules/QtWidgets/src/QmitkMultiWidgetLayoutSelectionWidget.ui
+++ b/Modules/QtWidgets/src/QmitkMultiWidgetLayoutSelectionWidget.ui
@@ -1,126 +1,123 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
  <class>QmitkMultiWidgetLayoutSelectionWidget</class>
  <widget class="QWidget" name="QmitkMultiWidgetLayoutSelectionWidget">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>224</width>
     <height>290</height>
    </rect>
   </property>
   <layout class="QVBoxLayout" name="verticalLayout">
    <item>
     <widget class="QTableWidget" name="tableWidget">
      <property name="editTriggers">
       <set>QAbstractItemView::NoEditTriggers</set>
      </property>
      <property name="showDropIndicator" stdset="0">
       <bool>false</bool>
      </property>
      <property name="dragDropOverwriteMode">
       <bool>false</bool>
      </property>
      <property name="rowCount">
       <number>3</number>
      </property>
      <property name="columnCount">
       <number>4</number>
      </property>
      <attribute name="horizontalHeaderVisible">
       <bool>false</bool>
      </attribute>
      <attribute name="horizontalHeaderDefaultSectionSize">
       <number>50</number>
      </attribute>
      <attribute name="horizontalHeaderMinimumSectionSize">
       <number>50</number>
      </attribute>
      <attribute name="verticalHeaderVisible">
       <bool>false</bool>
      </attribute>
      <attribute name="verticalHeaderDefaultSectionSize">
       <number>50</number>
      </attribute>
      <attribute name="verticalHeaderMinimumSectionSize">
       <number>50</number>
      </attribute>
      <row/>
      <row/>
      <row/>
      <column/>
      <column/>
      <column/>
      <column/>
     </widget>
    </item>
    <item>
     <widget class="QPushButton" name="setLayoutPushButton">
      <property name="text">
       <string>Set multi widget layout</string>
      </property>
     </widget>
    </item>
    <item>
     <widget class="Line" name="line">
      <property name="minimumSize">
       <size>
        <width>0</width>
        <height>0</height>
       </size>
      </property>
      <property name="baseSize">
       <size>
        <width>0</width>
        <height>0</height>
       </size>
      </property>
      <property name="lineWidth">
       <number>1</number>
      </property>
      <property name="midLineWidth">
       <number>0</number>
      </property>
      <property name="orientation">
       <enum>Qt::Horizontal</enum>
      </property>
     </widget>
    </item>
    <item>
     <widget class="QComboBox" name="selectDefaultLayoutComboBox">
      <property name="editable">
       <bool>false</bool>
      </property>
      <property name="currentText">
       <string/>
      </property>
-     <property name="placeholderText">
-      <string/>
-     </property>
     </widget>
    </item>
    <item>
     <layout class="QHBoxLayout" name="horizontalLayout">
      <item>
       <widget class="QPushButton" name="saveLayoutPushButton">
        <property name="text">
         <string>Save layout</string>
        </property>
       </widget>
      </item>
      <item>
       <widget class="QPushButton" name="loadLayoutPushButton">
        <property name="text">
         <string>Load layout</string>
        </property>
       </widget>
      </item>
     </layout>
    </item>
   </layout>
  </widget>
  <layoutdefault spacing="6" margin="11"/>
  <resources/>
  <connections/>
 </ui>