diff --git a/Examples/Tutorial/CMakeLists.txt b/Examples/Tutorial/CMakeLists.txt
index 368be2b2f1..6ec6bbe424 100644
--- a/Examples/Tutorial/CMakeLists.txt
+++ b/Examples/Tutorial/CMakeLists.txt
@@ -1,57 +1,57 @@
 MITK_CHECK_MODULE(MISSING QmitkExt)
 if(MISSING)
   message("Tutorial won't be built because QmitkExt is missing.")
 else(MISSING)
 
   MITK_USE_MODULE(QmitkExt)
   MITK_USE_MODULE(MitkExt)
 
   include_directories(${ALL_INCLUDE_DIRECTORIES})
 
   # initialize only the source lists which need additional files
   # Step6 is reused in Step7 and Step8. Step6.cpp has to be added
   # explicitly since it is not a member of ${STEP6_CPP} at this point
-  set(STEP6_CPP Step6RegionGrowing1.cpp Step6RegionGrowing2.cpp Step6main.cpp)
-  set(STEP7_CPP Step6RegionGrowing1.cpp Step6RegionGrowing2.cpp Step6.cpp Step7main.cpp)
-  set(STEP8_CPP Step6RegionGrowing1.cpp Step6RegionGrowing2.cpp Step6.cpp Step7.cpp Step8main.cpp)
+  set(STEP6_CPP Step6RegionGrowing1.cpp Step6RegionGrowing2.cpp Step6RegionGrowing3.cpp Step6main.cpp)
+  set(STEP7_CPP Step6RegionGrowing1.cpp Step6RegionGrowing2.cpp Step6RegionGrowing3.cpp Step6.cpp Step7main.cpp)
+  set(STEP8_CPP Step6RegionGrowing1.cpp Step6RegionGrowing2.cpp Step6RegionGrowing3.cpp Step6.cpp Step7.cpp Step8main.cpp)
 
   # some files need Qt wrapping
   QT4_WRAP_CPP(STEP6_MOC_CPP Step6.h)
   QT4_WRAP_CPP(STEP7_MOC_CPP Step7.h)
   QT4_WRAP_CPP(STEP8_MOC_CPP Step8.h)
 
   # set additional moc files to build
   set(STEP6_CPP ${STEP6_CPP} ${STEP6_MOC_CPP})
   set(STEP7_CPP ${STEP7_CPP} ${STEP7_MOC_CPP} ${STEP6_MOC_CPP})
   set(STEP8_CPP ${STEP8_CPP} ${STEP8_MOC_CPP} ${STEP7_MOC_CPP} ${STEP6_MOC_CPP})
 
   # for the others it's all the same
   foreach(stepNo RANGE 1 8)
     set(STEP${stepNo}_CPP ${STEP${stepNo}_CPP} Step${stepNo}.cpp QtTesting.cpp)
     add_executable(Step${stepNo} ${STEP${stepNo}_CPP})
     target_link_libraries(Step${stepNo} ${ALL_LIBRARIES})
   endforeach(stepNo)
 
 
   add_dependencies(Step7 Step6)
   add_dependencies(Step8 Step7 Step6)
 
   foreach(stepNo 1 2 3 4 5 6 7 8)
     # subproject support
     set_property(TARGET Step${stepNo} PROPERTY LABELS ${MITK_DEFAULT_SUBPROJECTS})
     foreach(subproject ${MITK_DEFAULT_SUBPROJECTS})
       add_dependencies(${subproject} Step${stepNo})
     endforeach()
   endforeach()
 
   # adding additional example for mitk itk and vtk interaction
   add_executable(mitkWithITKAndVTK mitkWithITKAndVTK.cpp)
   target_link_libraries(mitkWithITKAndVTK ${ALL_LIBRARIES})
 
   # subproject support
   set_property(TARGET mitkWithITKAndVTK PROPERTY LABELS ${MITK_DEFAULT_SUBPROJECTS})
   foreach(subproject ${MITK_DEFAULT_SUBPROJECTS})
     add_dependencies(${subproject} mitkWithITKAndVTK)
   endforeach()
 
 endif(MISSING)
diff --git a/Examples/Tutorial/Step6RegionGrowing3.cpp b/Examples/Tutorial/Step6RegionGrowing3.cpp
new file mode 100644
index 0000000000..746d84f0ce
--- /dev/null
+++ b/Examples/Tutorial/Step6RegionGrowing3.cpp
@@ -0,0 +1,32 @@
+/*===================================================================
+
+The Medical Imaging Interaction Toolkit (MITK)
+
+Copyright (c) German Cancer Research Center,
+Division of Medical and Biological Informatics.
+All rights reserved.
+
+This software is distributed WITHOUT ANY WARRANTY; without
+even the implied warranty of MERCHANTABILITY or FITNESS FOR
+A PARTICULAR PURPOSE.
+
+See LICENSE.txt or http://www.mitk.org for details.
+
+===================================================================*/
+
+#include "Step6RegionGrowing.txx"
+
+#include <mitkInstantiateAccessFunctions.h>
+
+#define InstantiateAccessFunction_RegionGrowing(pixelType, dim) \
+template void RegionGrowing(itk::Image<pixelType, dim>*, Step6*);
+
+/// Instantiate the access function for 4D and all datatypes.
+/// Instantiation for 3D is done in Step6RegionGrowing2.
+/// Some compilers have memory problems without the explicit
+/// instantiation, some even need the separation in 2D/3D/4D.
+InstantiateAccessFunctionForFixedDimension(RegionGrowing, 4)
+
+/**
+\example Step6RegionGrowing3.cpp
+*/