diff --git a/Plugins/org.mitk.gui.qt.dicom/src/internal/QmitkDicomTreeViewPreferencePage.cpp b/Plugins/org.mitk.gui.qt.dicom/src/internal/QmitkDicomTreeViewPreferencePage.cpp
index cb89c0ba81..62ddbd14e6 100644
--- a/Plugins/org.mitk.gui.qt.dicom/src/internal/QmitkDicomTreeViewPreferencePage.cpp
+++ b/Plugins/org.mitk.gui.qt.dicom/src/internal/QmitkDicomTreeViewPreferencePage.cpp
@@ -1,215 +1,223 @@
 /*===================================================================
 
 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 "QmitkDicomTreeViewPreferencePage.h"
 
 // DICOM UI
 #include "mitkDicomType.h"
 
 // DICOM browser GUI plugin
 #include "QmitkDicomBrowser.h"
 
 // berry
 #include <berryIPreferencesService.h>
 #include <berryPlatform.h>
 
 // MITK
 #include <mitkDICOMTagsOfInterestHelper.h>
 
 // Qt
 #include <QMessageBox>
 #include <QSignalMapper>
 
 QmitkDicomTreeViewPreferencePage::QmitkDicomTreeViewPreferencePage()
   : m_Control(nullptr)
 {
   // nothing here
 }
 
 void QmitkDicomTreeViewPreferencePage::Init(berry::IWorkbench::Pointer)
 {
   // nothing here
 }
 
 void QmitkDicomTreeViewPreferencePage::CreateQtControl(QWidget* parent)
 {
   // restore preferences from the previous session
   // will be used in the 'Update()'-function to set the items in the item list widgets
   m_DicomTreeViewPreferences = berry::Platform::GetPreferencesService()->GetSystemPreferences()->Node(QmitkDicomBrowser::EDITOR_ID);;
 
   m_Controls.setupUi(parent);
   m_Control = new QWidget(parent);
   m_Control->setLayout(m_Controls.gridLayout);
 
   QSignalMapper* lrSignalMapper = new QSignalMapper(this);
   lrSignalMapper->setMapping(m_Controls.leftPushButton, QString("left"));
   lrSignalMapper->setMapping(m_Controls.rightPushButton, QString("right"));
 
   QSignalMapper* udSignalMapper = new QSignalMapper(this);
   udSignalMapper->setMapping(m_Controls.upPushButton, QString("up"));
   udSignalMapper->setMapping(m_Controls.downPushButton, QString("down"));
 
   connect(m_Controls.leftPushButton, SIGNAL(clicked()), lrSignalMapper, SLOT(map()));
   connect(m_Controls.rightPushButton, SIGNAL(clicked()), lrSignalMapper, SLOT(map()));
   connect(m_Controls.upPushButton, SIGNAL(clicked()), udSignalMapper, SLOT(map()));
   connect(m_Controls.downPushButton, SIGNAL(clicked()), udSignalMapper, SLOT(map()));
 
   connect(lrSignalMapper, SIGNAL(mapped(const QString&)), this, SLOT(SwapListItem(const QString&)));
   connect(udSignalMapper, SIGNAL(mapped(const QString&)), this, SLOT(MoveListItem(const QString&)));
 
   this->Update();
 }
 
 QWidget* QmitkDicomTreeViewPreferencePage::GetQtControl() const
 {
   return m_Control;
 }
 
 bool QmitkDicomTreeViewPreferencePage::PerformOk()
 {
   if (m_DicomTreeViewPreferences.IsNotNull())
   {
     m_DicomTreeViewPreferences->BlockSignals(true);
     // reset number of items to later invoke the 'OnChanged' signal to be emitted (see after (BlockSignals(false)')
     m_DicomTreeViewPreferences->PutInt("NumberOfItems", -1);
     for (int i = 0; i < m_Controls.rightListWidget->count(); ++i)
     {
       QString tagName = m_Controls.rightListWidget->item(i)->text();
       std::map<QString, std::string>::iterator it = m_DICOMTagNames.find(tagName);
       QString DICOMTag;
       if (it != m_DICOMTagNames.end())
       {
         DICOMTag = QString::fromStdString(it->second);
       }
 
       QString item = "Item " + QString::number(i); // name for the current DICOM tag property
       m_DicomTreeViewPreferences->Put(item, DICOMTag);
     }
     m_DicomTreeViewPreferences->BlockSignals(false);
     m_DicomTreeViewPreferences->PutInt("NumberOfItems", m_Controls.rightListWidget->count());
 
     return true;
   }
   return false;
 }
 
 void QmitkDicomTreeViewPreferencePage::PerformCancel()
 {
   // nothing here
 }
 
 void QmitkDicomTreeViewPreferencePage::Update()
 {
   ResetLists();
 
   if (m_DicomTreeViewPreferences.IsNotNull())
   {
     int numberOfItems = m_DicomTreeViewPreferences->GetInt("NumberOfItems", 0);
     if (numberOfItems > 0)
     {
       QList<QListWidgetItem*> foundItems;
       foundItems.reserve(numberOfItems);
       for (int i = 0; i < numberOfItems; ++i)
       {
         QString item = "Item " + QString::number(i);
         std::string DICOMTag = m_DicomTreeViewPreferences->Get(item, "").toStdString();
         QString tagName = QString::fromStdString(Dicom::DICOMTagToName(DICOMTag));
         foundItems.append(m_Controls.leftListWidget->findItems(tagName, Qt::MatchExactly)); // should only get one hit
       }
       for (const auto& listWidgetItem : foundItems)
       {
         int row = m_Controls.leftListWidget->row(listWidgetItem);
         m_Controls.leftListWidget->takeItem(row);
         m_Controls.rightListWidget->addItem(listWidgetItem);
       }
     }
     else
     { // no preferences stored
       // write default preferences to the preferences node
       QList<QListWidgetItem*> foundItems = m_Controls.leftListWidget->findItems("Patient's Name", Qt::MatchExactly); // should only get one hit
       foundItems.append(m_Controls.leftListWidget->findItems("Study Description", Qt::MatchExactly)); // should only get one hit
       foundItems.append(m_Controls.leftListWidget->findItems("Series Description", Qt::MatchExactly)); // should only get one hit
       for (const auto& listWidgetItem : foundItems)
       {
         int row = m_Controls.leftListWidget->row(listWidgetItem);
         m_Controls.leftListWidget->takeItem(row);
         m_Controls.rightListWidget->addItem(listWidgetItem);
       }
     }
   }
 }
 
-void QmitkDicomTreeViewPreferencePage::SwapListItem(const QString& direction)
+void QmitkDicomTreeViewPreferencePage::SwapListItem(const QString &direction)
 {
   QListWidget* destination;
   QListWidget* source;
 
-  if (direction == "left")
+  if ("left" == direction)
   {
     destination = m_Controls.leftListWidget;
     source = m_Controls.rightListWidget;
   }
   else
   {
     destination = m_Controls.rightListWidget;
     source = m_Controls.leftListWidget;
   }
 
   if (source->count() == 0)
     return; // no more items left to move
 
   QListWidgetItem* widget = source->takeItem(source->currentRow());
   destination->addItem(widget);
+
+  if ("right" == direction)
+  {
+    // item moved to the left list widget - sort again
+    m_Controls.leftListWidget->sortItems();
+  }
 }
 
-void QmitkDicomTreeViewPreferencePage::MoveListItem(const QString& direction)
+void QmitkDicomTreeViewPreferencePage::MoveListItem(const QString &direction)
 {
   QListWidget* listWidget = m_Controls.rightListWidget;
 
   int currentRow = listWidget->currentRow();
   if ((currentRow <= 0 && direction == "up") ||
     (currentRow >= listWidget->count() - 1 && direction == "down"))
   {
     return; // item is at the top or bottom of the list
   }
 
   QListWidgetItem* currentItem = listWidget->takeItem(currentRow);
   if (direction == "up")
   {
     listWidget->insertItem(currentRow - 1, currentItem);
     listWidget->setCurrentRow(currentRow - 1);
   }
   else
   {
     listWidget->insertItem(currentRow + 1, currentItem);
     listWidget->setCurrentRow(currentRow + 1);
   }
 }
 
 void QmitkDicomTreeViewPreferencePage::ResetLists()
 {
   m_Controls.leftListWidget->clear();
   m_Controls.rightListWidget->clear();
 
   mitk::DICOMTagPathMapType defaultDICOMTags = mitk::GetDefaultDICOMTagsOfInterest();
   for (auto it = defaultDICOMTags.begin(); it != defaultDICOMTags.end(); ++it)
   {
     QString tagName = QString::fromStdString(Dicom::DICOMTagPathToName(it->first));
     m_Controls.leftListWidget->addItem(tagName);
 
     m_DICOMTagNames.insert(std::make_pair(tagName, mitk::DICOMTagPathToPropertyName(it->first)));
   }
+
+  m_Controls.leftListWidget->sortItems();
 }
diff --git a/Plugins/org.mitk.gui.qt.dicom/src/internal/QmitkDicomTreeViewPreferencePage.h b/Plugins/org.mitk.gui.qt.dicom/src/internal/QmitkDicomTreeViewPreferencePage.h
index 5ba91db02d..b3a685f0f7 100644
--- a/Plugins/org.mitk.gui.qt.dicom/src/internal/QmitkDicomTreeViewPreferencePage.h
+++ b/Plugins/org.mitk.gui.qt.dicom/src/internal/QmitkDicomTreeViewPreferencePage.h
@@ -1,92 +1,92 @@
 /*===================================================================
 
 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.
 
 ===================================================================*/
 
 #ifndef QMITKDICOMTREEVIEWPREFERENCEPAGE_H
 #define QMITKDICOMTREEVIEWPREFERENCEPAGE_H
 
 #include "ui_QmitkDicomTreeViewPreferencePageControls.h"
 
 // berry
 #include <berryIQtPreferencePage.h>
 #include <berryIPreferences.h>
 
 /**
 * @brief A preference page to set the DICOM tags for the order of the tree items in a DICOM Tree View
 *
 *   The preference page contains two list, where the left list shows all available DICOM tags that are currently
 *   not used in a DICOM tree view / model. The right list shows all DICOM tags that are currently used in a DICOM
 *   tree view / model to insert an item in the tree.
 *   When clicking 'Ok', the 'PerformOk'-function is called and the chosen DICOM tags in the right item list are stored
 *   in a preference node, which can be read by the 'QmitkDicomBrowser'. The browser then invokes a reset of the 
 *   DICOM tree, which was added as a widget to the 'QmitkDicomExternalDataWidget'. The reset involves a reset / modification
 *   of the sort-by-vector (see 'QmitkDicomTreeWidget').
 */
 struct QmitkDicomTreeViewPreferencePage : public QObject, public berry::IQtPreferencePage
 {
   Q_OBJECT
   Q_INTERFACES(berry::IPreferencePage)
 
 public:
   QmitkDicomTreeViewPreferencePage();
 
   void Init(berry::IWorkbench::Pointer workbench) override;
 
   void CreateQtControl(QWidget* widget) override;
 
   QWidget* GetQtControl() const override;
 
   /**
   * @see IPreferencePage::PerformOk()
   */
   virtual bool PerformOk() override;
 
   /**
   * @see IPreferencePage::PerformCancel()
   */
   virtual void PerformCancel() override;
 
   /**
   * @see IPreferencePage::Update() for usage of this function
   * @brief reset both lists and move the items from the last session from the left list to the right list
   */
   virtual void Update() override;
 
  protected Q_SLOTS:
 
   /**
   * @brief move a list item from the left list to the right list and vice versa
   */
-  void SwapListItem(const QString& direction);
+  void SwapListItem(const QString &direction);
   /**
   * @brief move a list item in the right list up and down
   */
-  void MoveListItem(const QString& direction);
+  void MoveListItem(const QString &direction);
 
 private:
 
   /**
   * @brief clear both lists and populate the lists with the default DICOM tags
   */
   void ResetLists();
 
   Ui::QmitkDicomTreeViewPreferencePageControls m_Controls;
   QWidget* m_Control;
 
   berry::IPreferences::Pointer m_DicomTreeViewPreferences;
   std::map<QString, std::string> m_DICOMTagNames;
 };
 
 #endif // QMITKDICOMTREEVIEWPREFERENCEPAGE_H
diff --git a/Plugins/org.mitk.gui.qt.dicom/src/internal/QmitkDicomTreeViewPreferencePageControls.ui b/Plugins/org.mitk.gui.qt.dicom/src/internal/QmitkDicomTreeViewPreferencePageControls.ui
index 7ddd75291e..031f54ec2a 100644
--- a/Plugins/org.mitk.gui.qt.dicom/src/internal/QmitkDicomTreeViewPreferencePageControls.ui
+++ b/Plugins/org.mitk.gui.qt.dicom/src/internal/QmitkDicomTreeViewPreferencePageControls.ui
@@ -1,173 +1,177 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <ui version="4.0">
  <class>QmitkDicomTreeViewPreferencePageControls</class>
  <widget class="QWidget" name="QmitkDicomTreeViewPreferencePageControls">
   <property name="geometry">
    <rect>
     <x>0</x>
     <y>0</y>
     <width>700</width>
     <height>600</height>
    </rect>
   </property>
   <property name="sizePolicy">
    <sizepolicy hsizetype="Preferred" vsizetype="Preferred">
     <horstretch>0</horstretch>
     <verstretch>0</verstretch>
    </sizepolicy>
   </property>
   <property name="minimumSize">
    <size>
     <width>653</width>
     <height>116</height>
    </size>
   </property>
   <property name="maximumSize">
    <size>
     <width>16777215</width>
     <height>16777215</height>
    </size>
   </property>
   <property name="windowTitle">
    <string>Form</string>
   </property>
   <layout class="QGridLayout" name="gridLayout">
    <item row="0" column="0">
     <widget class="QGroupBox" name="groupBox">
      <property name="enabled">
       <bool>true</bool>
      </property>
      <property name="sizePolicy">
       <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
        <horstretch>0</horstretch>
        <verstretch>0</verstretch>
       </sizepolicy>
      </property>
      <property name="autoFillBackground">
       <bool>false</bool>
      </property>
      <property name="title">
       <string>Patient tree view - DICOM information</string>
      </property>
      <layout class="QGridLayout" name="gridLayout_2">
       <item row="0" column="0">
        <widget class="QLabel" name="leftLabel">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
         <property name="text">
          <string>Available DICOM information</string>
         </property>
        </widget>
       </item>
       <item row="0" column="2" colspan="2">
        <widget class="QLabel" name="rightLabel">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Preferred" vsizetype="Maximum">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
         <property name="text">
          <string>DICOM information used for the tree view</string>
         </property>
        </widget>
       </item>
       <item row="1" column="0" rowspan="4">
-       <widget class="QListWidget" name="leftListWidget"/>
+       <widget class="QListWidget" name="leftListWidget">
+        <property name="sortingEnabled">
+         <bool>true</bool>
+        </property>
+       </widget>
       </item>
       <item row="1" column="2" rowspan="4" colspan="2">
        <widget class="QListWidget" name="rightListWidget">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
        </widget>
       </item>
       <item row="2" column="1">
        <widget class="QPushButton" name="leftPushButton">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
         <property name="maximumSize">
          <size>
           <width>16777215</width>
           <height>16777215</height>
          </size>
         </property>
         <property name="text">
          <string>Move left</string>
         </property>
        </widget>
       </item>
       <item row="3" column="1">
        <widget class="QPushButton" name="rightPushButton">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Expanding" vsizetype="Fixed">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
         <property name="maximumSize">
          <size>
           <width>16777215</width>
           <height>16777215</height>
          </size>
         </property>
         <property name="text">
          <string>Move right</string>
         </property>
        </widget>
       </item>
       <item row="5" column="2">
        <widget class="QPushButton" name="upPushButton">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
         <property name="text">
          <string>Move up</string>
         </property>
        </widget>
       </item>
       <item row="5" column="3">
        <widget class="QPushButton" name="downPushButton">
         <property name="sizePolicy">
          <sizepolicy hsizetype="Preferred" vsizetype="Fixed">
           <horstretch>0</horstretch>
           <verstretch>0</verstretch>
          </sizepolicy>
         </property>
         <property name="text">
          <string>Move down</string>
         </property>
        </widget>
       </item>
       <item row="5" column="1">
        <widget class="QLabel" name="label">
         <property name="text">
          <string>Sort tree by</string>
         </property>
         <property name="alignment">
          <set>Qt::AlignCenter</set>
         </property>
        </widget>
       </item>
      </layout>
     </widget>
    </item>
   </layout>
  </widget>
  <resources/>
  <connections/>
 </ui>