diff --git a/CMake/CTKConfig.cmake.in b/CMake/CTKConfig.cmake.in
index 908f241eef..9b51363c3a 100644
--- a/CMake/CTKConfig.cmake.in
+++ b/CMake/CTKConfig.cmake.in
@@ -63,17 +63,19 @@ include("${CTK_CMAKE_DIR}/ctkMacroTargetLibraries.cmake") # Import multiple macr
 include("${CTK_CMAKE_DIR}/ctkFunctionExtractOptionNameAndValue.cmake")
 include("${CTK_CMAKE_DIR}/ctkMacroValidateBuildOptions.cmake")
 include("${CTK_CMAKE_DIR}/ctkFunctionGenerateDGraphInput.cmake")
+include("${CTK_CMAKE_DIR}/ctkFunctionGetIncludeDirs.cmake")
+include("${CTK_CMAKE_DIR}/ctkFunctionGetLibraryDirs.cmake")
+include("${CTK_CMAKE_DIR}/ctkMacroGenerateMocs.cmake")
+
+# PluginFramework
 include("${CTK_CMAKE_DIR}/ctkFunctionGeneratePluginManifest.cmake")
 include("${CTK_CMAKE_DIR}/ctkFunctionGeneratePluginUseFile.cmake")
 include("${CTK_CMAKE_DIR}/ctkMacroGeneratePluginResourceFile.cmake")
-include("${CTK_CMAKE_DIR}/ctkFunctionGetIncludeDirs.cmake")
-include("${CTK_CMAKE_DIR}/ctkFunctionGetLibraryDirs.cmake")
 include("${CTK_CMAKE_DIR}/ctkFunctionExtractPluginTargets.cmake")
 include("${CTK_CMAKE_DIR}/ctkFunctionGetAllPluginTargets.cmake")
 include("${CTK_CMAKE_DIR}/ctkFunctionGetTargetDependencies.cmake")
 include("${CTK_CMAKE_DIR}/ctkFunctionGetPluginDependencies.cmake")
 include("${CTK_CMAKE_DIR}/ctkMacroSetupPlugins.cmake")
-include("${CTK_CMAKE_DIR}/ctkMacroGenerateMocs.cmake")
 
 include(CMakeFindDependencyMacro)
 
diff --git a/CMake/ctkLinkerAsNeededFlagCheck/CMakeLists.txt b/CMake/ctkLinkerAsNeededFlagCheck/CMakeLists.txt
index 0191c1cb4b..c9666ad328 100644
--- a/CMake/ctkLinkerAsNeededFlagCheck/CMakeLists.txt
+++ b/CMake/ctkLinkerAsNeededFlagCheck/CMakeLists.txt
@@ -1,3 +1,4 @@
+cmake_minimum_required(VERSION 3.0 FATAL_ERROR)
 project(ctkLinkerAsNeededFlagCheck)
 add_library(A SHARED A.cpp)
 add_library(B SHARED B.cpp)
diff --git a/CMake/ctkMacroSetupQt.cmake b/CMake/ctkMacroSetupQt.cmake
index 3ee9035651..cfd93cf345 100644
--- a/CMake/ctkMacroSetupQt.cmake
+++ b/CMake/ctkMacroSetupQt.cmake
@@ -20,14 +20,6 @@
 
 #! \ingroup CMakeUtilities
 macro(ctkMacroSetupQt)
-  set(CTK_QT_VERSION "5" CACHE STRING "Expected Qt version")
-  mark_as_advanced(CTK_QT_VERSION)
-
-  set_property(CACHE CTK_QT_VERSION PROPERTY STRINGS 5)
-
-  if(NOT CTK_QT_VERSION VERSION_EQUAL "5")
-    message(FATAL_ERROR "Expected value for CTK_QT_VERSION is '5'")
-  endif()
 
   if(CTK_QT_VERSION VERSION_EQUAL "5")
     cmake_minimum_required(VERSION 2.8.12)
@@ -61,7 +53,7 @@ macro(ctkMacroSetupQt)
 
     if(CTK_LIB_DICOM/Core
       OR CTK_LIB_DICOM/Widgets
-      OR Libs/PluginFramework
+      OR CTK_LIB_PluginFramework
       )
       list(APPEND CTK_QT5_COMPONENTS Sql)
     endif()
@@ -139,6 +131,4 @@ macro(ctkMacroSetupQt)
   else()
     message(FATAL_ERROR "Support for Qt${CTK_QT_VERSION} is not implemented")
   endif()
-
-  mark_as_superbuild(CTK_QT_VERSION)
 endmacro()
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6ba2e9c52b..a2777f6a52 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -102,6 +102,14 @@ mark_as_superbuild(
 option(CTK_SUPERBUILD "Build ${PROJECT_NAME} and the projects it depends on." ON)
 mark_as_advanced(CTK_SUPERBUILD)
 
+#-----------------------------------------------------------------------------
+# Qt version
+#
+set(CTK_QT_VERSION "5" CACHE STRING "Expected Qt version")
+mark_as_advanced(CTK_QT_VERSION)
+set_property(CACHE CTK_QT_VERSION PROPERTY STRINGS 5)
+mark_as_superbuild(CTK_QT_VERSION)
+
 #-----------------------------------------------------------------------------
 # Output directories.
 #
@@ -1131,6 +1139,23 @@ endif()
 #
 add_subdirectory( Documentation )
 
+#---------------------------------------------------------------------------
+# Install rules
+#
+foreach(file
+  # PluginFramework
+  CMake/ctkFunctionGeneratePluginManifest.cmake
+  CMake/ctkFunctionGeneratePluginUseFile.cmake
+  CMake/ctkMacroGeneratePluginResourceFile.cmake
+  CMake/ctkFunctionExtractPluginTargets.cmake
+  CMake/ctkFunctionGetAllPluginTargets.cmake
+  CMake/ctkFunctionGetTargetDependencies.cmake
+  CMake/ctkFunctionGetPluginDependencies.cmake
+  CMake/ctkMacroSetupPlugins.cmake
+  )
+  install(FILES ${file} DESTINATION ${CTK_INSTALL_CMAKE_DIR} COMPONENT Development)
+endforeach()
+
 #-----------------------------------------------------------------------------
 # The commands in this directory are intended to be executed as
 # the end of the whole configuration process, as a "last step".
diff --git a/Libs/DICOM/Widgets/ctkDICOMBrowser.cpp b/Libs/DICOM/Widgets/ctkDICOMBrowser.cpp
index 344810e1f7..22dda34897 100644
--- a/Libs/DICOM/Widgets/ctkDICOMBrowser.cpp
+++ b/Libs/DICOM/Widgets/ctkDICOMBrowser.cpp
@@ -1092,10 +1092,29 @@ bool ctkDICOMBrowser::confirmDeleteSelectedUIDs(QStringList uids)
   ctkMessageBox confirmDeleteDialog;
   QString message = tr("Do you want to delete the following selected items?");
 
+  // calculate maximum number of rows that fit in the browser widget to have a reasonable limit
+  // on the items to show in the dialog
+  int browserHeight = this->geometry().height();
+  int patientsTableRowHeight = d->dicomTableManager->patientsTable()->tableView()->rowHeight(0);
+  int maxNumberOfPatientsToShow = browserHeight / patientsTableRowHeight - 3; // subtract 3 due to the checkbox, buttons, and header
+  if (maxNumberOfPatientsToShow < 3)
+  {
+    // make sure there are a meaningful number of items shown
+    maxNumberOfPatientsToShow = 3;
+  }
+
   // add the information about the selected UIDs
   int numUIDs = uids.size();
   for (int i = 0; i < numUIDs; ++i)
   {
+    if (i >= maxNumberOfPatientsToShow && numUIDs > maxNumberOfPatientsToShow + 1)
+    {
+      // displayed when there are additional DICOM items to delete that do not fit on screen
+      // note: do not show this message if there is only one more to show (the message also takes a line)
+      message += QString("\n") + tr("(and %1 more)").arg(numUIDs - maxNumberOfPatientsToShow);
+      break;
+    }
+
     QString uid = uids.at(i);
 
     // try using the given UID to find a descriptive string
diff --git a/Libs/Visualization/VTK/Widgets/ctkVTKAbstractView.cpp b/Libs/Visualization/VTK/Widgets/ctkVTKAbstractView.cpp
index 965108b671..2a44ce1991 100644
--- a/Libs/Visualization/VTK/Widgets/ctkVTKAbstractView.cpp
+++ b/Libs/Visualization/VTK/Widgets/ctkVTKAbstractView.cpp
@@ -64,6 +64,9 @@ ctkVTKAbstractViewPrivate::ctkVTKAbstractViewPrivate(ctkVTKAbstractView& object)
   this->PauseRenderCount = 0;
 }
 
+// --------------------------------------------------------------------------
+ctkVTKAbstractViewPrivate::~ctkVTKAbstractViewPrivate() = default;
+
 // --------------------------------------------------------------------------
 void ctkVTKAbstractViewPrivate::init()
 {
diff --git a/Libs/Visualization/VTK/Widgets/ctkVTKAbstractView_p.h b/Libs/Visualization/VTK/Widgets/ctkVTKAbstractView_p.h
index 76693d7508..e2f9ff863f 100644
--- a/Libs/Visualization/VTK/Widgets/ctkVTKAbstractView_p.h
+++ b/Libs/Visualization/VTK/Widgets/ctkVTKAbstractView_p.h
@@ -52,6 +52,7 @@ class ctkVTKAbstractViewPrivate : public QObject
 
 public:
   ctkVTKAbstractViewPrivate(ctkVTKAbstractView& object);
+  virtual ~ctkVTKAbstractViewPrivate();
 
   /// Convenient setup methods
   virtual void init();
diff --git a/Libs/Visualization/VTK/Widgets/ctkVTKRenderView.cpp b/Libs/Visualization/VTK/Widgets/ctkVTKRenderView.cpp
index 620bccc95c..0ce88a8f16 100644
--- a/Libs/Visualization/VTK/Widgets/ctkVTKRenderView.cpp
+++ b/Libs/Visualization/VTK/Widgets/ctkVTKRenderView.cpp
@@ -60,6 +60,21 @@ ctkVTKRenderViewPrivate::ctkVTKRenderViewPrivate(ctkVTKRenderView& object)
   this->Orientation->SetOrientationMarker(this->Axes);
 }
 
+// --------------------------------------------------------------------------
+ctkVTKRenderViewPrivate::~ctkVTKRenderViewPrivate() = default;
+
+// --------------------------------------------------------------------------
+void ctkVTKRenderViewPrivate::init()
+{
+  this->ctkVTKAbstractViewPrivate::init();
+
+  // The interactor in RenderWindow exists after the renderwindow is set to
+  // the QVTKWidet
+  this->Orientation->SetInteractor(this->RenderWindow->GetInteractor());
+  this->Orientation->SetEnabled(1);
+  this->Orientation->InteractiveOff();
+}
+
 // --------------------------------------------------------------------------
 void ctkVTKRenderViewPrivate::setupCornerAnnotation()
 {
@@ -204,18 +219,21 @@ ctkVTKRenderView::ctkVTKRenderView(QWidget* parentWidget)
 {
   Q_D(ctkVTKRenderView);
   d->init();
+}
 
-  // The interactor in RenderWindow exists after the renderwindow is set to
-  // the QVTKWidet
-  d->Orientation->SetInteractor(d->RenderWindow->GetInteractor());
-  d->Orientation->SetEnabled(1);
-  d->Orientation->InteractiveOff();
+// --------------------------------------------------------------------------
+ctkVTKRenderView::ctkVTKRenderView(ctkVTKRenderViewPrivate* pimpl, QWidget* parentWidget)
+  : Superclass(pimpl, parentWidget)
+{
+  // derived classes must call init manually. Calling init() here may results in
+  // actions on a derived public class not yet finished to be created
 }
 
 //----------------------------------------------------------------------------
 ctkVTKRenderView::~ctkVTKRenderView()
 {
 }
+
 //----------------------------------------------------------------------------
 void ctkVTKRenderView::setInteractor(vtkRenderWindowInteractor* newInteractor)
 {
diff --git a/Libs/Visualization/VTK/Widgets/ctkVTKRenderView.h b/Libs/Visualization/VTK/Widgets/ctkVTKRenderView.h
index 2f2ce2c09e..73273593a0 100644
--- a/Libs/Visualization/VTK/Widgets/ctkVTKRenderView.h
+++ b/Libs/Visualization/VTK/Widgets/ctkVTKRenderView.h
@@ -145,7 +145,7 @@ public Q_SLOTS:
 
   /// Set window interactor
   /// Reimplemented to propagate interaction to Orientation widget
-  virtual void setInteractor(vtkRenderWindowInteractor* interactor);
+  void setInteractor(vtkRenderWindowInteractor* interactor) override;
 
   /// Return pitch, roll or yaw increment (in degree)
   double pitchRollYawIncrement()const;
@@ -186,6 +186,9 @@ public Q_SLOTS:
   /// Return zoom factor
   double zoomFactor()const;
 
+protected:
+  ctkVTKRenderView(ctkVTKRenderViewPrivate* pimpl, QWidget* parent);
+
 private:
   Q_DECLARE_PRIVATE(ctkVTKRenderView);
   Q_DISABLE_COPY(ctkVTKRenderView);
diff --git a/Libs/Visualization/VTK/Widgets/ctkVTKRenderView_p.h b/Libs/Visualization/VTK/Widgets/ctkVTKRenderView_p.h
index bc2695d63f..d03b572beb 100644
--- a/Libs/Visualization/VTK/Widgets/ctkVTKRenderView_p.h
+++ b/Libs/Visualization/VTK/Widgets/ctkVTKRenderView_p.h
@@ -43,17 +43,19 @@ class vtkRenderWindowInteractor;
 
 //-----------------------------------------------------------------------------
 /// \ingroup Visualization_VTK_Widgets
-class ctkVTKRenderViewPrivate : public ctkVTKAbstractViewPrivate
+class CTK_VISUALIZATION_VTK_WIDGETS_EXPORT ctkVTKRenderViewPrivate : public ctkVTKAbstractViewPrivate
 {
   Q_OBJECT
   Q_DECLARE_PUBLIC(ctkVTKRenderView);
 
 public:
   ctkVTKRenderViewPrivate(ctkVTKRenderView& object);
+  virtual ~ctkVTKRenderViewPrivate();
 
   /// Convenient setup methods
-  virtual void setupCornerAnnotation();
-  virtual void setupRendering();
+  void init() override;
+  void setupCornerAnnotation() override;
+  void setupRendering() override;
 
   void zoom(double zoomFactor);
 
diff --git a/Libs/Visualization/VTK/Widgets/ctkVTKSliceView.cpp b/Libs/Visualization/VTK/Widgets/ctkVTKSliceView.cpp
index eadd1e0706..b1aea4c146 100644
--- a/Libs/Visualization/VTK/Widgets/ctkVTKSliceView.cpp
+++ b/Libs/Visualization/VTK/Widgets/ctkVTKSliceView.cpp
@@ -50,6 +50,18 @@ ctkVTKSliceViewPrivate::ctkVTKSliceViewPrivate(ctkVTKSliceView& object)
   this->OverlayRenderer = vtkSmartPointer<vtkRenderer>::New();
 }
 
+// --------------------------------------------------------------------------
+ctkVTKSliceViewPrivate::~ctkVTKSliceViewPrivate() = default;
+
+// --------------------------------------------------------------------------
+void ctkVTKSliceViewPrivate::init()
+{
+  Q_Q(ctkVTKSliceView);
+  this->ctkVTKAbstractViewPrivate::init();
+
+  q->VTKWidget()->installEventFilter(q);
+}
+
 // --------------------------------------------------------------------------
 void ctkVTKSliceViewPrivate::setupCornerAnnotation()
 {
@@ -100,7 +112,14 @@ ctkVTKSliceView::ctkVTKSliceView(QWidget* parentWidget)
 {
   Q_D(ctkVTKSliceView);
   d->init();
-  this->VTKWidget()->installEventFilter(this);
+}
+
+// --------------------------------------------------------------------------
+ctkVTKSliceView::ctkVTKSliceView(ctkVTKSliceViewPrivate* pimpl, QWidget* parentWidget)
+  : Superclass(pimpl, parentWidget)
+{
+  // derived classes must call init manually. Calling init() here may results in
+  // actions on a derived public class not yet finished to be created
 }
 
 // --------------------------------------------------------------------------
diff --git a/Libs/Visualization/VTK/Widgets/ctkVTKSliceView.h b/Libs/Visualization/VTK/Widgets/ctkVTKSliceView.h
index 4d4d85a44f..6d5ad29b37 100644
--- a/Libs/Visualization/VTK/Widgets/ctkVTKSliceView.h
+++ b/Libs/Visualization/VTK/Widgets/ctkVTKSliceView.h
@@ -71,11 +71,11 @@ class CTK_VISUALIZATION_VTK_WIDGETS_EXPORT ctkVTKSliceView : public ctkVTKAbstra
 
   /// Set background color
   /// \sa vtkLightBoxRendererManager::SetBackgroundColor
-  virtual void setBackgroundColor(const QColor& newBackgroundColor);
+  void setBackgroundColor(const QColor& newBackgroundColor) override;
 
   /// Get background color
   /// \sa setBackgroundColor();
-  virtual QColor backgroundColor()const;
+  QColor backgroundColor()const override;
 
   /// Get highlightedBox color
   /// \sa setHighlightedBoxColor();
@@ -133,7 +133,8 @@ public Q_SLOTS:
   void resized(const QSize& size);
 
 protected:
-  virtual bool eventFilter(QObject *object, QEvent *event);
+  ctkVTKSliceView(ctkVTKSliceViewPrivate* pimpl, QWidget* parent);
+  bool eventFilter(QObject *object, QEvent *event) override;
 
 private:
   Q_DECLARE_PRIVATE(ctkVTKSliceView);
diff --git a/Libs/Visualization/VTK/Widgets/ctkVTKSliceView_p.h b/Libs/Visualization/VTK/Widgets/ctkVTKSliceView_p.h
index 8f9812b001..6ab2097e5c 100644
--- a/Libs/Visualization/VTK/Widgets/ctkVTKSliceView_p.h
+++ b/Libs/Visualization/VTK/Widgets/ctkVTKSliceView_p.h
@@ -41,15 +41,19 @@ class vtkRenderWindowInteractor;
 
 //-----------------------------------------------------------------------------
 /// \ingroup Visualization_VTK_Widgets
-class ctkVTKSliceViewPrivate : public ctkVTKAbstractViewPrivate
+class CTK_VISUALIZATION_VTK_WIDGETS_EXPORT ctkVTKSliceViewPrivate : public ctkVTKAbstractViewPrivate
 {
   Q_OBJECT
+  Q_DECLARE_PUBLIC(ctkVTKSliceView);
+
 public:
   ctkVTKSliceViewPrivate(ctkVTKSliceView&);
+  virtual ~ctkVTKSliceViewPrivate();
 
   /// Convenient setup methods
-  void setupCornerAnnotation();
-  void setupRendering();
+  void init() override;
+  void setupCornerAnnotation() override;
+  void setupRendering() override;
 
   vtkSmartPointer<vtkLightBoxRendererManager>   LightBoxRendererManager;
   bool                                          RenderPending;