diff --git a/imageviewer-qt4.cpp b/imageviewer-qt4.cpp
index 938bc95..5c92099 100644
--- a/imageviewer-qt4.cpp
+++ b/imageviewer-qt4.cpp
@@ -672,6 +672,25 @@ void ImageViewer::generateControlPanels() {
   
   tabWidget->addTab(task_tab3_widget, "Task #3");
   
+  
+  // Tab for fourth task
+  task_tab4_widget = new QWidget();
+  task_tab4_vboxlayout = new QVBoxLayout();
+  task_tab4_widget->setLayout(task_tab4_vboxlayout);
+  task_tab4_scrollwidget = new QWidget();
+  task_tab4_scrollarea = new QScrollArea();
+  task_tab4_scrollarea->setWidgetResizable(true);
+  task_tab4_scrollarea->setWidget(task_tab4_scrollwidget);
+  task_tab4_vboxlayout->addWidget(task_tab4_scrollarea);
+  task_tab4_scrolllayout = new QVBoxLayout();
+  task_tab4_scrolllayout->setSizeConstraint(QLayout::SetMaximumSize);
+  task_tab4_scrollwidget->setLayout(task_tab4_scrolllayout);
+  
+  
+  
+  tabWidget->addTab(task_tab4_widget, "Task #4");
+  
+  
   //Show it  
   tabWidget->show();
 
diff --git a/imageviewer-qt4.h b/imageviewer-qt4.h
index ac6d490..67bbcd2 100644
--- a/imageviewer-qt4.h
+++ b/imageviewer-qt4.h
@@ -124,6 +124,13 @@ class ImageViewer : public QMainWindow {
     QPushButton* partial_linear_histogramm_adaption;
     QPushButton* succeeding_histogramm_adaption;
     
+    // Fourth task tabWidget
+    QWidget* task_tab4_widget;
+    QVBoxLayout* task_tab4_vboxlayout;
+    QWidget* task_tab4_scrollwidget;
+    QScrollArea* task_tab4_scrollarea;
+    QVBoxLayout* task_tab4_scrolllayout;
+    
     // "My" space for storing data/results
     LazyImage* original;
     LazyImage* working_copy;