diff --git a/src/board/UBBoardController.cpp b/src/board/UBBoardController.cpp
index ac5e2398..e830958e 100644
--- a/src/board/UBBoardController.cpp
+++ b/src/board/UBBoardController.cpp
@@ -1550,11 +1550,11 @@ void UBBoardController::moveSceneToIndex(int source, int target)
     }
 }
 
-void UBBoardController::fitUniqIems(const QUndoCommand *parent, QSet<QGraphicsItem*> &itms)
+void UBBoardController::findUniquesItems(const QUndoCommand *parent, QSet<QGraphicsItem*> &itms)
 {
     if (parent->childCount()) {
         for (int i = 0; i < parent->childCount(); i++) {
-            fitUniqIems(parent->child(i), itms);
+            findUniquesItems(parent->child(i), itms);
         }
     }
 
@@ -1563,11 +1563,11 @@ void UBBoardController::fitUniqIems(const QUndoCommand *parent, QSet<QGraphicsIt
         return;
     }
 
-    const UBAbstractUndoCommand *abstractCmd = static_cast<const UBAbstractUndoCommand*>(parent);
-    if(abstractCmd->getType() != UBAbstractUndoCommand::undotype_GRAPHICITEM)
+    const UBUndoCommand *undoCmd = static_cast<const UBUndoCommand*>(parent);
+    if(undoCmd->getType() != UBUndoType::undotype_GRAPHICITEM)
         return;
 
-    const UBGraphicsItemUndoCommand *cmd = static_cast<const UBGraphicsItemUndoCommand*>(parent);
+    const UBGraphicsItemUndoCommand *cmd = dynamic_cast<const UBGraphicsItemUndoCommand*>(parent);
 
     // go through all added and removed objects, for create list of unique objects
     // grouped items will be deleted by groups, so we don't need do delete that items.
@@ -1593,7 +1593,7 @@ void UBBoardController::ClearUndoStack()
     QSet<QGraphicsItem*> uniqueItems;
     // go through all stack command
     for (int i = 0; i < UBApplication::undoStack->count(); i++) {
-        fitUniqIems(UBApplication::undoStack->command(i), uniqueItems);
+        findUniquesItems(UBApplication::undoStack->command(i), uniqueItems);
     }
 
     // go through all unique items, and check, if they are on scene, or not.
diff --git a/src/board/UBBoardController.h b/src/board/UBBoardController.h
index 8ab9b27e..93f92419 100644
--- a/src/board/UBBoardController.h
+++ b/src/board/UBBoardController.h
@@ -160,7 +160,7 @@ class UBBoardController : public UBDocumentContainer
         void notifyPageChanged();
         void displayMetaData(QMap<QString, QString> metadatas);
 
-        void fitUniqIems(const QUndoCommand *parent, QSet<QGraphicsItem *> &itms);
+        void findUniquesItems(const QUndoCommand *parent, QSet<QGraphicsItem *> &itms);
         void ClearUndoStack();
 
         void setActiveDocumentScene(UBDocumentProxy* pDocumentProxy, int pSceneIndex = 0, bool forceReload = false);
diff --git a/src/core/UB.h b/src/core/UB.h
index 493590c8..ab42fb7f 100644
--- a/src/core/UB.h
+++ b/src/core/UB.h
@@ -195,4 +195,13 @@ struct DocumentSizeRatio
     };
 };
 
+
+struct UBUndoType
+{
+    enum Enum
+    {
+        undotype_UNKNOWN  = 0, undotype_DOCUMENT, undotype_GRAPHICITEMTRANSFORM, undotype_GRAPHICITEM, undotype_GRAPHICTEXTITEM, undotype_PAGESIZE, undotype_GRAPHICSGROUPITEM
+    };
+};
+
 #endif /* UB_H_ */
diff --git a/src/domain/UBGraphicsItemGroupUndoCommand.cpp b/src/domain/UBGraphicsItemGroupUndoCommand.cpp
index 25a3ebed..ea1df298 100644
--- a/src/domain/UBGraphicsItemGroupUndoCommand.cpp
+++ b/src/domain/UBGraphicsItemGroupUndoCommand.cpp
@@ -28,9 +28,10 @@
 #include "core/memcheck.h"
 
 
-UBGraphicsItemGroupUndoCommand::UBGraphicsItemGroupUndoCommand(UBGraphicsScene *pScene, UBGraphicsGroupContainerItem *pGroupCreated) :
-    mScene (pScene), mGroup(pGroupCreated), mFirstRedo(true)
-
+UBGraphicsItemGroupUndoCommand::UBGraphicsItemGroupUndoCommand(UBGraphicsScene *pScene, UBGraphicsGroupContainerItem *pGroupCreated) : UBUndoCommand()
+  , mScene (pScene)
+  , mGroup(pGroupCreated)
+  , mFirstRedo(true)
 {
     if (pGroupCreated->childItems().count()) {
         foreach (QGraphicsItem *item, pGroupCreated->childItems()) {
diff --git a/src/domain/UBGraphicsItemGroupUndoCommand.h b/src/domain/UBGraphicsItemGroupUndoCommand.h
index 981ebb33..c280af0e 100644
--- a/src/domain/UBGraphicsItemGroupUndoCommand.h
+++ b/src/domain/UBGraphicsItemGroupUndoCommand.h
@@ -25,18 +25,18 @@
 #define UBGRAPHICSITEMGROUPUNDOCOMMAND_H
 
 #include <QList>
-#include "UBAbstractUndoCommand.h"
+#include "UBUndoCommand.h"
 
 class UBGraphicsScene;
 class UBGraphicsGroupContainerItem;
 
-class UBGraphicsItemGroupUndoCommand : public UBAbstractUndoCommand
+class UBGraphicsItemGroupUndoCommand : public UBUndoCommand
 {
 public:
     UBGraphicsItemGroupUndoCommand(UBGraphicsScene *pScene, UBGraphicsGroupContainerItem *pGroupCreated);
     virtual ~UBGraphicsItemGroupUndoCommand();
 
-    virtual UndoType getType() { return undotype_GRAPHICSGROUPITEM; }
+    virtual int getType() const { return UBUndoType::undotype_GRAPHICSGROUPITEM; }
 
 protected:
     virtual void undo();
diff --git a/src/domain/UBGraphicsItemTransformUndoCommand.cpp b/src/domain/UBGraphicsItemTransformUndoCommand.cpp
index 316eb703..5ea77630 100644
--- a/src/domain/UBGraphicsItemTransformUndoCommand.cpp
+++ b/src/domain/UBGraphicsItemTransformUndoCommand.cpp
@@ -29,7 +29,7 @@
 
 UBGraphicsItemTransformUndoCommand::UBGraphicsItemTransformUndoCommand(QGraphicsItem* pItem,
      const QPointF& prevPos, const QTransform& prevTransform, const qreal& prevZValue,
-     const QSizeF& prevSize)
+                                                                       const QSizeF& prevSize):UBUndoCommand()
 {
     mItem = pItem;
     mPreviousTransform = prevTransform;
diff --git a/src/domain/UBGraphicsItemTransformUndoCommand.h b/src/domain/UBGraphicsItemTransformUndoCommand.h
index aa586ec2..07e0aede 100644
--- a/src/domain/UBGraphicsItemTransformUndoCommand.h
+++ b/src/domain/UBGraphicsItemTransformUndoCommand.h
@@ -27,10 +27,10 @@
 #include <QtGui>
 
 #include "UBResizableGraphicsItem.h"
-#include "UBAbstractUndoCommand.h"
+#include "UBUndoCommand.h"
 
 
-class UBGraphicsItemTransformUndoCommand : public UBAbstractUndoCommand
+class UBGraphicsItemTransformUndoCommand : public UBUndoCommand
 {
     public:
         UBGraphicsItemTransformUndoCommand(QGraphicsItem* pItem,
@@ -40,7 +40,7 @@ class UBGraphicsItemTransformUndoCommand : public UBAbstractUndoCommand
                                                 const QSizeF& prevSize = QSizeF());
         virtual ~UBGraphicsItemTransformUndoCommand();
 
-        virtual UndoType getType() { return undotype_GRAPHICITEMTRANSFORM; }
+        virtual int getType() const { return UBUndoType::undotype_GRAPHICITEMTRANSFORM; }
 
     protected:
         virtual void undo();
diff --git a/src/domain/UBGraphicsItemUndoCommand.cpp b/src/domain/UBGraphicsItemUndoCommand.cpp
index 36cb74d6..b047d6a5 100644
--- a/src/domain/UBGraphicsItemUndoCommand.cpp
+++ b/src/domain/UBGraphicsItemUndoCommand.cpp
@@ -35,9 +35,8 @@
 #include "domain/UBGraphicsGroupContainerItem.h"
 #include "domain/UBGraphicsPolygonItem.h"
 
-UBGraphicsItemUndoCommand::UBGraphicsItemUndoCommand(UBGraphicsScene* pScene, const QSet<QGraphicsItem*>& pRemovedItems,
-                                                     const QSet<QGraphicsItem*>& pAddedItems, const GroupDataTable &groupsMap)
-    : mScene(pScene)
+UBGraphicsItemUndoCommand::UBGraphicsItemUndoCommand(UBGraphicsScene* pScene, const QSet<QGraphicsItem*>& pRemovedItems, const QSet<QGraphicsItem*>& pAddedItems, const GroupDataTable &groupsMap): UBUndoCommand()
+    , mScene(pScene)
     , mRemovedItems(pRemovedItems - pAddedItems)
     , mAddedItems(pAddedItems - pRemovedItems)
     , mExcludedFromGroup(groupsMap)
@@ -57,9 +56,8 @@ UBGraphicsItemUndoCommand::UBGraphicsItemUndoCommand(UBGraphicsScene* pScene, co
     }
 }
 
-UBGraphicsItemUndoCommand::UBGraphicsItemUndoCommand(UBGraphicsScene* pScene, QGraphicsItem* pRemovedItem,
-               QGraphicsItem* pAddedItem) :
-    mScene(pScene)
+UBGraphicsItemUndoCommand::UBGraphicsItemUndoCommand(UBGraphicsScene* pScene, QGraphicsItem* pRemovedItem, QGraphicsItem* pAddedItem) : UBUndoCommand()
+    , mScene(pScene)
 {
 
     if (pRemovedItem)
diff --git a/src/domain/UBGraphicsItemUndoCommand.h b/src/domain/UBGraphicsItemUndoCommand.h
index 4e288f37..86cde9aa 100644
--- a/src/domain/UBGraphicsItemUndoCommand.h
+++ b/src/domain/UBGraphicsItemUndoCommand.h
@@ -25,14 +25,14 @@
 #define UBGRAPHICSITEMUNDOCOMMAND_H_
 
 #include <QtGui>
-#include "UBAbstractUndoCommand.h"
+#include "UBUndoCommand.h"
 #include "UBGraphicsGroupContainerItem.h"
 
 
 class UBGraphicsScene;
 
 
-class UBGraphicsItemUndoCommand : public UBAbstractUndoCommand
+class UBGraphicsItemUndoCommand : public UBUndoCommand
 {
     public:
         typedef QMultiMap<UBGraphicsGroupContainerItem*, QUuid> GroupDataTable;
@@ -48,7 +48,7 @@ class UBGraphicsItemUndoCommand : public UBAbstractUndoCommand
         QSet<QGraphicsItem*> GetAddedList() const { return mAddedItems; }
         QSet<QGraphicsItem*> GetRemovedList() const { return mRemovedItems; }
 
-        virtual UndoType getType() { return undotype_GRAPHICITEM; }
+        virtual int getType() const { return UBUndoType::undotype_GRAPHICITEM; }
 
     protected:
         virtual void undo();
diff --git a/src/domain/UBGraphicsTextItemUndoCommand.h b/src/domain/UBGraphicsTextItemUndoCommand.h
index 5b1d8c53..85e54714 100644
--- a/src/domain/UBGraphicsTextItemUndoCommand.h
+++ b/src/domain/UBGraphicsTextItemUndoCommand.h
@@ -25,18 +25,18 @@
 #define UBGRAPHICSTEXTITEMUNDOCOMMAND_H_
 
 #include <QtGui>
-#include "UBAbstractUndoCommand.h"
+#include "UBUndoCommand.h"
 
 #include "UBGraphicsTextItem.h"
 
 
-class UBGraphicsTextItemUndoCommand : public UBAbstractUndoCommand
+class UBGraphicsTextItemUndoCommand : public UBUndoCommand
 {
     public:
         UBGraphicsTextItemUndoCommand(UBGraphicsTextItem *textItem);
         virtual ~UBGraphicsTextItemUndoCommand();
 
-        virtual UndoType getType() { return undotype_GRAPHICTEXTITEM; };
+        virtual int getType() const { return UBUndoType::undotype_GRAPHICTEXTITEM; };
 
     protected:
         virtual void undo();
diff --git a/src/domain/UBPageSizeUndoCommand.h b/src/domain/UBPageSizeUndoCommand.h
index 35e46bda..1abbe7a2 100644
--- a/src/domain/UBPageSizeUndoCommand.h
+++ b/src/domain/UBPageSizeUndoCommand.h
@@ -25,18 +25,18 @@
 #define UBPageSizeUndoCommand_H_
 
 #include <QtGui>
-#include "UBAbstractUndoCommand.h"
+#include "UBUndoCommand.h"
 
 class UBGraphicsScene;
 
 
-class UBPageSizeUndoCommand : public UBAbstractUndoCommand
+class UBPageSizeUndoCommand : public UBUndoCommand
 {
     public:
         UBPageSizeUndoCommand(UBGraphicsScene* pScene, const QSize& previousSize, const QSize& newSize);
         virtual ~UBPageSizeUndoCommand();
 
-        virtual UndoType getType() { return undotype_PAGESIZE; };
+        virtual int getType() { return UBUndoType::undotype_PAGESIZE; };
 
     protected:
         virtual void undo();
diff --git a/src/domain/UBAbstractUndoCommand.cpp b/src/domain/UBUndoCommand.cpp
similarity index 76%
rename from src/domain/UBAbstractUndoCommand.cpp
rename to src/domain/UBUndoCommand.cpp
index 54083211..9d641258 100644
--- a/src/domain/UBAbstractUndoCommand.cpp
+++ b/src/domain/UBUndoCommand.cpp
@@ -21,30 +21,17 @@
 
 
 
-#include "UBAbstractUndoCommand.h"
+#include "UBUndoCommand.h"
 
 #include "core/memcheck.h"
 
-UBAbstractUndoCommand::UBAbstractUndoCommand()
+UBUndoCommand::UBUndoCommand(QUndoCommand* parent):QUndoCommand(parent)
 {
     // NOOP
 }
 
-UBAbstractUndoCommand::~UBAbstractUndoCommand()
+UBUndoCommand::~UBUndoCommand()
 {
     // NOOP
 }
 
-
-void UBAbstractUndoCommand::undo()
-{
-    // NOOP
-}
-
-void UBAbstractUndoCommand::redo()
-{
-    // NOOP
-}
-
-//void UBAbstractUndoCommand::UndoType getType(UndoType type);
-
diff --git a/src/domain/UBAbstractUndoCommand.h b/src/domain/UBUndoCommand.h
similarity index 62%
rename from src/domain/UBAbstractUndoCommand.h
rename to src/domain/UBUndoCommand.h
index a544c52b..80a989ae 100644
--- a/src/domain/UBAbstractUndoCommand.h
+++ b/src/domain/UBUndoCommand.h
@@ -25,30 +25,16 @@
 #define UBABSTRACTUNDOCOMMAND_H_
 
 #include <QtGui>
+#include <core/UB.h>
 
-class UBAbstractUndoCommand : public QUndoCommand
+class UBUndoCommand : public QUndoCommand
 {
     public:
 
-        UBAbstractUndoCommand();
-        ~UBAbstractUndoCommand();
-
-        enum UndoType
-        {
-            undotype_UNKNOWN               = 0,
-            undotype_DOCUMENT              = 1,
-            undotype_GRAPHICITEMTRANSFORM  = 2,
-            undotype_GRAPHICITEM           = 3,
-            undotype_GRAPHICTEXTITEM       = 4,
-            undotype_PAGESIZE              = 5,
-            undotype_GRAPHICSGROUPITEM     = 6
-        };
-
-        virtual UndoType getType() const { return undotype_UNKNOWN; }
-
-    protected:
-        virtual void undo();
-        virtual void redo();
+        UBUndoCommand(QUndoCommand *parent = 0);
+        ~UBUndoCommand();
+
+        virtual int getType() const { return UBUndoType::undotype_UNKNOWN; }
 
 };
 
diff --git a/src/domain/domain.pri b/src/domain/domain.pri
index 93172f49..b525dfd6 100644
--- a/src/domain/domain.pri
+++ b/src/domain/domain.pri
@@ -14,7 +14,6 @@ HEADERS += src/domain/UBGraphicsScene.h \
     src/domain/UBResizableGraphicsItem.h \
     src/domain/UBGraphicsStroke.h \
     src/domain/UBGraphicsMediaItem.h \
-    src/domain/UBAbstractUndoCommand.h \
     src/domain/UBGraphicsGroupContainerItem.h \
     src/domain/UBGraphicsGroupContainerItemDelegate.h \
     src/domain/UBGraphicsStrokesGroup.h \
@@ -24,7 +23,8 @@ HEADERS += src/domain/UBGraphicsScene.h \
     src/domain/UBGraphicsDelegateFrame.h \
     src/domain/UBGraphicsWidgetItemDelegate.h \
     src/domain/UBGraphicsMediaItemDelegate.h \
-    src/domain/UBSelectionFrame.h
+    src/domain/UBSelectionFrame.h \
+    src/domain/UBUndoCommand.h
 
 SOURCES += src/domain/UBGraphicsScene.cpp \
     src/domain/UBGraphicsItemUndoCommand.cpp \
@@ -42,7 +42,6 @@ SOURCES += src/domain/UBGraphicsScene.cpp \
     src/domain/UBResizableGraphicsItem.cpp \
     src/domain/UBGraphicsStroke.cpp \
     src/domain/UBGraphicsMediaItem.cpp \
-    src/domain/UBAbstractUndoCommand.cpp \
     src/domain/UBGraphicsGroupContainerItem.cpp \
     src/domain/UBGraphicsGroupContainerItemDelegate.cpp \
     src/domain/UBGraphicsStrokesGroup.cpp \
@@ -52,4 +51,5 @@ SOURCES += src/domain/UBGraphicsScene.cpp \
     src/domain/UBGraphicsMediaItemDelegate.cpp \
     src/domain/UBGraphicsDelegateFrame.cpp \
     src/domain/UBGraphicsWidgetItemDelegate.cpp \
-    src/domain/UBSelectionFrame.cpp
+    src/domain/UBSelectionFrame.cpp \
+    src/domain/UBUndoCommand.cpp