diff --git a/src/app/core/vapplication.cpp b/src/app/core/vapplication.cpp
index daaf8c478..61076608c 100644
--- a/src/app/core/vapplication.cpp
+++ b/src/app/core/vapplication.cpp
@@ -2068,14 +2068,14 @@ VSettings *VApplication::getSettings()
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-VMainGraphicsScene *VApplication::getCurrentScene() const
+QGraphicsScene *VApplication::getCurrentScene() const
 {
     SCASSERT(currentScene != nullptr);
     return currentScene;
 }
 
 //---------------------------------------------------------------------------------------------------------------------
-void VApplication::setCurrentScene(VMainGraphicsScene *value)
+void VApplication::setCurrentScene(QGraphicsScene *value)
 {
     currentScene = value;
 }
diff --git a/src/app/core/vapplication.h b/src/app/core/vapplication.h
index da5df856d..38c714903 100644
--- a/src/app/core/vapplication.h
+++ b/src/app/core/vapplication.h
@@ -38,7 +38,6 @@
 class VApplication;// used in define
 class QUndoStack;
 class VMainGraphicsView;
-class VMainGraphicsScene;
 class VPattern;
 class QFile;
 #if QT_VERSION >= QT_VERSION_CHECK(5, 1, 0)
@@ -110,8 +109,8 @@ public:
     void               OpenSettings();
     VSettings          *getSettings();
 
-    VMainGraphicsScene *getCurrentScene() const;
-    void               setCurrentScene(VMainGraphicsScene *value);
+    QGraphicsScene    *getCurrentScene() const;
+    void               setCurrentScene(QGraphicsScene *value);
 
     void               setCurrentDocument(VPattern *doc);
     VPattern           *getCurrentDocument()const;
@@ -151,7 +150,7 @@ private:
     QMap<QString, qmu::QmuTranslation> stDescriptions;
     QUndoStack         *undoStack;
     VMainGraphicsView  *sceneView;
-    VMainGraphicsScene *currentScene;
+    QGraphicsScene     *currentScene;
     QTimer             *autoSaveTimer;
     /**
      * @brief mainWindow pointer to main window. Usefull if need create modal dialog. Without pointer to main window
diff --git a/src/app/dialogs/tools/dialogalongline.cpp b/src/app/dialogs/tools/dialogalongline.cpp
index 9d3cd576d..f33b72ab8 100644
--- a/src/app/dialogs/tools/dialogalongline.cpp
+++ b/src/app/dialogs/tools/dialogalongline.cpp
@@ -117,7 +117,8 @@ void DialogAlongLine::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisToolAlongLine::SetFactor);
         scene->addItem(line);
         line->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogarc.cpp b/src/app/dialogs/tools/dialogarc.cpp
index 4edc42a66..3105693df 100644
--- a/src/app/dialogs/tools/dialogarc.cpp
+++ b/src/app/dialogs/tools/dialogarc.cpp
@@ -225,7 +225,8 @@ void DialogArc::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, path, &Visualization::SetFactor);
         scene->addItem(path);
         path->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogbisector.cpp b/src/app/dialogs/tools/dialogbisector.cpp
index 4d3136c2c..c43a27d1a 100644
--- a/src/app/dialogs/tools/dialogbisector.cpp
+++ b/src/app/dialogs/tools/dialogbisector.cpp
@@ -126,7 +126,8 @@ void DialogBisector::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisToolBisector::SetFactor);
         scene->addItem(line);
         line->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogcurveintersectaxis.cpp b/src/app/dialogs/tools/dialogcurveintersectaxis.cpp
index d240d3d23..3476be2d2 100644
--- a/src/app/dialogs/tools/dialogcurveintersectaxis.cpp
+++ b/src/app/dialogs/tools/dialogcurveintersectaxis.cpp
@@ -166,7 +166,7 @@ void DialogCurveIntersectAxis::ShowDialog(bool click)
         if (click)
         {
             /*We will ignore click if poinet is in point circle*/
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
             SCASSERT(scene != nullptr);
             const QSharedPointer<VPointF> point = data->GeometricObject<VPointF>(GetBasePointId());
             QLineF line = QLineF(point->toQPointF(), scene->getScenePos());
@@ -258,7 +258,8 @@ void DialogCurveIntersectAxis::ShowVisualization()
     if (prepare == false)
     {
         //TODO move to parent class!
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisToolCurveIntersectAxis::SetFactor);
         scene->addItem(line);
         line->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogcutarc.cpp b/src/app/dialogs/tools/dialogcutarc.cpp
index 437831a70..7268423e9 100644
--- a/src/app/dialogs/tools/dialogcutarc.cpp
+++ b/src/app/dialogs/tools/dialogcutarc.cpp
@@ -92,7 +92,8 @@ void DialogCutArc::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, path, &Visualization::SetFactor);
         scene->addItem(path);
         path->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogcutspline.cpp b/src/app/dialogs/tools/dialogcutspline.cpp
index 62e72c46d..8eefa1e0d 100644
--- a/src/app/dialogs/tools/dialogcutspline.cpp
+++ b/src/app/dialogs/tools/dialogcutspline.cpp
@@ -196,7 +196,8 @@ void DialogCutSpline::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, path, &Visualization::SetFactor);
         scene->addItem(path);
         path->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogcutsplinepath.cpp b/src/app/dialogs/tools/dialogcutsplinepath.cpp
index 46affdf82..f2f06812d 100644
--- a/src/app/dialogs/tools/dialogcutsplinepath.cpp
+++ b/src/app/dialogs/tools/dialogcutsplinepath.cpp
@@ -196,7 +196,8 @@ void DialogCutSplinePath::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, path, &Visualization::SetFactor);
         scene->addItem(path);
         path->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogendline.cpp b/src/app/dialogs/tools/dialogendline.cpp
index 43553a0b0..27b9891e0 100644
--- a/src/app/dialogs/tools/dialogendline.cpp
+++ b/src/app/dialogs/tools/dialogendline.cpp
@@ -261,7 +261,7 @@ void DialogEndLine::ShowDialog(bool click)
         if (click)
         {
             /*We will ignore click if poinet is in point circle*/
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
             SCASSERT(scene != nullptr);
             const QSharedPointer<VPointF> point = data->GeometricObject<VPointF>(GetBasePointId());
             QLineF line = QLineF(point->toQPointF(), scene->getScenePos());
@@ -287,7 +287,8 @@ void DialogEndLine::ShowVisualization()
     if (prepare == false)
     {
         //TODO move to parent class!
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisToolEndLine::SetFactor);
         scene->addItem(line);
         line->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogheight.cpp b/src/app/dialogs/tools/dialogheight.cpp
index 971e86f5f..9440e517a 100644
--- a/src/app/dialogs/tools/dialogheight.cpp
+++ b/src/app/dialogs/tools/dialogheight.cpp
@@ -254,7 +254,8 @@ void DialogHeight::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisLine::SetFactor);
         scene->addItem(line);
         line->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogline.cpp b/src/app/dialogs/tools/dialogline.cpp
index 3f358cb83..218deabb2 100644
--- a/src/app/dialogs/tools/dialogline.cpp
+++ b/src/app/dialogs/tools/dialogline.cpp
@@ -145,7 +145,8 @@ void DialogLine::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisToolLine::SetFactor);
         scene->addItem(line);
         line->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialoglineintersect.cpp b/src/app/dialogs/tools/dialoglineintersect.cpp
index 48ab1b952..084373e2c 100644
--- a/src/app/dialogs/tools/dialoglineintersect.cpp
+++ b/src/app/dialogs/tools/dialoglineintersect.cpp
@@ -229,7 +229,8 @@ void DialogLineIntersect::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisLine::SetFactor);
         scene->addItem(line);
         line->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialoglineintersectaxis.cpp b/src/app/dialogs/tools/dialoglineintersectaxis.cpp
index f54198ae5..d9aac1dd7 100644
--- a/src/app/dialogs/tools/dialoglineintersectaxis.cpp
+++ b/src/app/dialogs/tools/dialoglineintersectaxis.cpp
@@ -187,7 +187,7 @@ void DialogLineIntersectAxis::ShowDialog(bool click)
         if (click)
         {
             /*We will ignore click if poinet is in point circle*/
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
             SCASSERT(scene != nullptr);
             const QSharedPointer<VPointF> point = data->GeometricObject<VPointF>(GetBasePointId());
             QLineF line = QLineF(point->toQPointF(), scene->getScenePos());
@@ -322,7 +322,8 @@ void DialogLineIntersectAxis::ShowVisualization()
     if (prepare == false)
     {
         //TODO move to parent class!
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisToolLineIntersectAxis::SetFactor);
         scene->addItem(line);
         line->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialognormal.cpp b/src/app/dialogs/tools/dialognormal.cpp
index 960bac439..fe54d4703 100644
--- a/src/app/dialogs/tools/dialognormal.cpp
+++ b/src/app/dialogs/tools/dialognormal.cpp
@@ -116,7 +116,8 @@ void DialogNormal::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisLine::SetFactor);
         scene->addItem(line);
         line->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogpointofcontact.cpp b/src/app/dialogs/tools/dialogpointofcontact.cpp
index 5f5e3f336..694ab9cdc 100644
--- a/src/app/dialogs/tools/dialogpointofcontact.cpp
+++ b/src/app/dialogs/tools/dialogpointofcontact.cpp
@@ -133,7 +133,8 @@ void DialogPointOfContact::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisLine::SetFactor);
         scene->addItem(line);
         line->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogpointofintersection.cpp b/src/app/dialogs/tools/dialogpointofintersection.cpp
index 3c03d60e5..b122108a7 100644
--- a/src/app/dialogs/tools/dialogpointofintersection.cpp
+++ b/src/app/dialogs/tools/dialogpointofintersection.cpp
@@ -161,7 +161,8 @@ void DialogPointOfIntersection::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisLine::SetFactor);
         line->RefreshGeometry();
     }
diff --git a/src/app/dialogs/tools/dialogshoulderpoint.cpp b/src/app/dialogs/tools/dialogshoulderpoint.cpp
index 16619b558..33194dbce 100644
--- a/src/app/dialogs/tools/dialogshoulderpoint.cpp
+++ b/src/app/dialogs/tools/dialogshoulderpoint.cpp
@@ -126,7 +126,8 @@ void DialogShoulderPoint::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisLine::SetFactor);
         scene->addItem(line);
         line->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogspline.cpp b/src/app/dialogs/tools/dialogspline.cpp
index e6cdcc807..297cd135d 100644
--- a/src/app/dialogs/tools/dialogspline.cpp
+++ b/src/app/dialogs/tools/dialogspline.cpp
@@ -185,7 +185,8 @@ void DialogSpline::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, path, &Visualization::SetFactor);
         scene->addItem(path);
         path->RefreshGeometry();
diff --git a/src/app/dialogs/tools/dialogsplinepath.cpp b/src/app/dialogs/tools/dialogsplinepath.cpp
index d9b3dc968..d36870d10 100644
--- a/src/app/dialogs/tools/dialogsplinepath.cpp
+++ b/src/app/dialogs/tools/dialogsplinepath.cpp
@@ -267,7 +267,8 @@ void DialogSplinePath::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, visPath, &Visualization::SetFactor);
         scene->addItem(visPath);
         visPath->setMode(Mode::Show);
diff --git a/src/app/dialogs/tools/dialogtriangle.cpp b/src/app/dialogs/tools/dialogtriangle.cpp
index d35d9e68e..e765be0c7 100644
--- a/src/app/dialogs/tools/dialogtriangle.cpp
+++ b/src/app/dialogs/tools/dialogtriangle.cpp
@@ -200,7 +200,8 @@ void DialogTriangle::ShowVisualization()
 {
     if (prepare == false)
     {
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+        SCASSERT(scene != nullptr)
         connect(scene, &VMainGraphicsScene::NewFactor, line, &VisLine::SetFactor);
         scene->addItem(line);
         line->RefreshGeometry();
diff --git a/src/app/mainwindow.cpp b/src/app/mainwindow.cpp
index 462bc3f8d..df748737e 100644
--- a/src/app/mainwindow.cpp
+++ b/src/app/mainwindow.cpp
@@ -264,7 +264,11 @@ void MainWindow::SetToolButton(bool checked, Tool t, const QString &cursor, cons
         helpLabel->setText(toolTip);
         ui->view->setShowToolOptions(false);
         dialogTool = new Dialog(pattern, 0, this);
-        connect(currentScene, &VMainGraphicsScene::ChoosedObject, dialogTool, &DialogTool::ChosenObject);
+
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(currentScene);
+        SCASSERT(scene != nullptr);
+
+        connect(scene, &VMainGraphicsScene::ChoosedObject, dialogTool, &DialogTool::ChosenObject);
         connect(dialogTool, &DialogTool::DialogClosed, this, closeDialogSlot);
         connect(dialogTool, &DialogTool::ToolTip, this, &MainWindow::ShowToolTip);
         ui->view->itemClicked(nullptr);
@@ -273,7 +277,6 @@ void MainWindow::SetToolButton(bool checked, Tool t, const QString &cursor, cons
     {
         if (QToolButton *tButton = qobject_cast< QToolButton * >(this->sender()))
         {
-            SCASSERT(tButton != nullptr);
             tButton->setChecked(true);
         }
     }
@@ -304,7 +307,11 @@ void MainWindow::SetToolButtonWithApply(bool checked, Tool t, const QString &cur
         ui->view->setShowToolOptions(false);
         helpLabel->setText(toolTip);
         dialogTool = new Dialog(pattern, 0, this);
-        connect(currentScene, &VMainGraphicsScene::ChoosedObject, dialogTool, &DialogTool::ChosenObject);
+
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(currentScene);
+        SCASSERT(scene != nullptr);
+
+        connect(scene, &VMainGraphicsScene::ChoosedObject, dialogTool, &DialogTool::ChosenObject);
         connect(dialogTool, &DialogTool::DialogClosed, this, closeDialogSlot);
         connect(dialogTool, &DialogTool::DialogApplied, this, applyDialogSlot);
         connect(dialogTool, &DialogTool::ToolTip, this, &MainWindow::ShowToolTip);
@@ -315,7 +322,6 @@ void MainWindow::SetToolButtonWithApply(bool checked, Tool t, const QString &cur
     {
         if (QToolButton *tButton = qobject_cast< QToolButton * >(this->sender()))
         {
-            SCASSERT(tButton != nullptr);
             tButton->setChecked(true);
         }
     }
@@ -331,7 +337,10 @@ void MainWindow::ClosedDialog(int result)
     SCASSERT(dialogTool != nullptr);
     if (result == QDialog::Accepted)
     {
-        QGraphicsItem *tool = dynamic_cast<QGraphicsItem *>(DrawTool::Create(dialogTool, currentScene, doc, pattern));
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(currentScene);
+        SCASSERT(scene != nullptr);
+
+        QGraphicsItem *tool = dynamic_cast<QGraphicsItem *>(DrawTool::Create(dialogTool, scene, doc, pattern));
         ui->view->itemClicked(tool);
     }
     ArrowTool();
@@ -351,8 +360,11 @@ void MainWindow::ClosedDialogWithApply(int result)
         // Only create tool if not already created with apply
         if (dialogTool->GetAssociatedTool() == nullptr)
         {
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(currentScene);
+            SCASSERT(scene != nullptr);
+
             dialogTool->SetAssociatedTool(
-                    dynamic_cast<VAbstractTool * > (DrawTool::Create(dialogTool, currentScene, doc, pattern)));
+                    dynamic_cast<VAbstractTool * > (DrawTool::Create(dialogTool, scene, doc, pattern)));
         }
         else
         { // Or update associated tool with data
@@ -382,8 +394,11 @@ void MainWindow::ApplyDialog()
     // Only create tool if not already created with apply
     if (dialogTool->GetAssociatedTool() == nullptr)
     {
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(currentScene);
+        SCASSERT(scene != nullptr);
+
         dialogTool->SetAssociatedTool(
-                static_cast<VAbstractTool * > (DrawTool::Create(dialogTool, currentScene, doc, pattern)));
+                static_cast<VAbstractTool * > (DrawTool::Create(dialogTool, scene, doc, pattern)));
     }
     else
     { // Or update associated tool with data
@@ -792,6 +807,33 @@ void MainWindow::customEvent(QEvent *event)
     }
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void MainWindow::ClearLayout()
+{
+    qDeleteAll (scenes);
+    scenes.clear();
+    shadows.clear();
+    papers.clear();
+    ui->listWidget->clear();
+    //EnableActions(false);
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void MainWindow::PrepareSceneList()
+{
+    for (int i=1; i<=scenes.size(); ++i)
+    {
+        QListWidgetItem *item = new QListWidgetItem(ScenePreview(i-1), QString::number(i));
+        ui->listWidget->addItem(item);
+    }
+
+    if (not scenes.isEmpty())
+    {
+        ui->listWidget->setCurrentRow(0);
+        //EnableActions(true);
+    }
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 /**
  * @brief ToolBarOption enable option toolbar.
@@ -944,6 +986,7 @@ void MainWindow::InitToolButtons()
     connect(ui->toolButtonLineIntersectAxis, &QToolButton::clicked, this, &MainWindow::ToolLineIntersectAxis);
     connect(ui->toolButtonCurveIntersectAxis, &QToolButton::clicked, this, &MainWindow::ToolCurveIntersectAxis);
     connect(ui->toolButtonArcIntersectAxis, &QToolButton::clicked, this, &MainWindow::ToolCurveIntersectAxis);
+    connect(ui->toolButtonLayoutSettings, &QToolButton::clicked, this, &MainWindow::ToolLayoutSettings);
 }
 
 //---------------------------------------------------------------------------------------------------------------------
@@ -1120,13 +1163,16 @@ void MainWindow::SaveCurrentScene()
 {
     if (mode == Draw::Calculation || mode == Draw::Modeling)
     {
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(currentScene);
+        SCASSERT(scene != nullptr);
+
         /*Save transform*/
-        currentScene->setTransform(ui->view->transform());
+        scene->setTransform(ui->view->transform());
         /*Save scroll bars value for previous scene.*/
         QScrollBar *horScrollBar = ui->view->horizontalScrollBar();
-        currentScene->setHorScrollBar(horScrollBar->value());
+        scene->setHorScrollBar(horScrollBar->value());
         QScrollBar *verScrollBar = ui->view->verticalScrollBar();
-        currentScene->setVerScrollBar(verScrollBar->value());
+        scene->setVerScrollBar(verScrollBar->value());
     }
 }
 
@@ -1136,13 +1182,16 @@ void MainWindow::SaveCurrentScene()
  */
 void MainWindow::RestoreCurrentScene()
 {
+    VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(currentScene);
+    SCASSERT(scene != nullptr);
+
     /*Set transform for current scene*/
-    ui->view->setTransform(currentScene->transform());
+    ui->view->setTransform(scene->transform());
     /*Set value for current scene scroll bar.*/
     QScrollBar *horScrollBar = ui->view->horizontalScrollBar();
-    horScrollBar->setValue(currentScene->getHorScrollBar());
+    horScrollBar->setValue(scene->getHorScrollBar());
     QScrollBar *verScrollBar = ui->view->verticalScrollBar();
-    verScrollBar->setValue(currentScene->getVerScrollBar());
+    verScrollBar->setValue(scene->getVerScrollBar());
 }
 
 //---------------------------------------------------------------------------------------------------------------------
diff --git a/src/app/mainwindow.h b/src/app/mainwindow.h
index 1e7a1202e..94a1a7a79 100644
--- a/src/app/mainwindow.h
+++ b/src/app/mainwindow.h
@@ -146,6 +146,9 @@ protected:
     virtual void       showEvent(QShowEvent *event);
     virtual void       closeEvent(QCloseEvent *event);
     virtual void       customEvent(QEvent * event);
+
+    virtual void       ClearLayout();
+    virtual void       PrepareSceneList();
 private:
     Q_DISABLE_COPY(MainWindow)
     /** @brief ui keeps information about user interface */
diff --git a/src/app/mainwindow.ui b/src/app/mainwindow.ui
index 77573adb3..e2b8f5ade 100644
--- a/src/app/mainwindow.ui
+++ b/src/app/mainwindow.ui
@@ -24,6 +24,9 @@
    <layout class="QHBoxLayout" name="horizontalLayout">
     <item>
      <widget class="QToolBox" name="toolBox">
+      <property name="enabled">
+       <bool>true</bool>
+      </property>
       <property name="sizePolicy">
        <sizepolicy hsizetype="Fixed" vsizetype="Preferred">
         <horstretch>2</horstretch>
@@ -40,7 +43,7 @@
        <string/>
       </property>
       <property name="currentIndex">
-       <number>5</number>
+       <number>4</number>
       </property>
       <widget class="QWidget" name="page">
        <property name="geometry">
@@ -685,6 +688,9 @@
        <layout class="QFormLayout" name="formLayout_5">
         <item row="0" column="0">
          <widget class="QToolButton" name="toolButtonNewDetail">
+          <property name="enabled">
+           <bool>false</bool>
+          </property>
           <property name="toolTip">
            <string>Seam allowance tool</string>
           </property>
@@ -741,6 +747,9 @@
        <layout class="QFormLayout" name="formLayout_6">
         <item row="0" column="0">
          <widget class="QToolButton" name="toolButtonLayoutSettings">
+          <property name="enabled">
+           <bool>false</bool>
+          </property>
           <property name="text">
            <string>Settings</string>
           </property>
diff --git a/src/app/mainwindowsnogui.cpp b/src/app/mainwindowsnogui.cpp
index 5e2d37c22..fb00a38b4 100644
--- a/src/app/mainwindowsnogui.cpp
+++ b/src/app/mainwindowsnogui.cpp
@@ -29,13 +29,20 @@
 #include "mainwindowsnogui.h"
 #include "../core/vapplication.h"
 #include "../container/vcontainer.h"
+#include "../dialogs/app/dialoglayoutsettings.h"
+#include "../../libs/vlayout/vlayoutgenerator.h"
+#include "../dialogs/app/dialoglayoutprogress.h"
+#include "../dialogs/app/dialogsavelayout.h"
+#include "../../libs/vlayout/vposter.h"
 
 #include <QGraphicsScene>
+#include <QToolButton>
 
 //---------------------------------------------------------------------------------------------------------------------
 MainWindowsNoGUI::MainWindowsNoGUI(QWidget *parent)
     : QMainWindow(parent), listDetails(QVector<VLayoutDetail>()), currentScene(nullptr), tempSceneLayout(nullptr),
-      pattern(new VContainer())
+      pattern(new VContainer()), papers(QList<QGraphicsItem *>()), shadows(QList<QGraphicsItem *>()),
+      scenes(QList<QGraphicsScene *>()), details(QList<QList<QGraphicsItem *> >())
 {
     InitTempLayoutScene();
 }
@@ -47,6 +54,60 @@ MainWindowsNoGUI::~MainWindowsNoGUI()
     delete pattern;
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+void MainWindowsNoGUI::ToolLayoutSettings(bool checked)
+{
+    if (checked)
+    {
+        VLayoutGenerator lGenerator(this);
+        lGenerator.SetDetails(listDetails);
+
+        DialogLayoutSettings layout(&lGenerator, this);
+        if (layout.exec() == QDialog::Rejected)
+        {
+            return;
+        }
+
+        DialogLayoutProgress progress(listDetails.count(), this);
+
+        connect(&lGenerator, &VLayoutGenerator::Start, &progress, &DialogLayoutProgress::Start);
+        connect(&lGenerator, &VLayoutGenerator::Arranged, &progress, &DialogLayoutProgress::Arranged);
+        connect(&lGenerator, &VLayoutGenerator::Error, &progress, &DialogLayoutProgress::Error);
+        connect(&lGenerator, &VLayoutGenerator::Finished, &progress, &DialogLayoutProgress::Finished);
+        connect(&progress, &DialogLayoutProgress::Abort, &lGenerator, &VLayoutGenerator::Abort);
+
+        lGenerator.Generate();
+
+        switch (lGenerator.State())
+        {
+            case LayoutErrors::NoError:
+                ClearLayout();
+                papers = lGenerator.GetPapersItems();// Blank sheets
+                details = lGenerator.GetAllDetails();// All details
+                CreateShadows();
+                CreateScenes();
+                PrepareSceneList();
+                break;
+            case LayoutErrors::ProcessStoped:
+                break;
+            case LayoutErrors::PrepareLayoutError:
+            case LayoutErrors::PaperSizeError:
+            case LayoutErrors::EmptyPaperError:
+                ClearLayout();
+                break;
+            default:
+                break;
+        }
+    }
+    else
+    {
+        if (QToolButton *tButton = qobject_cast< QToolButton * >(this->sender()))
+        {
+            tButton->setChecked(true);
+        }
+    }
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void MainWindowsNoGUI::PrepareDetailsForLayout(const QHash<quint32, VDetail> *details)
 {
@@ -76,6 +137,83 @@ void MainWindowsNoGUI::PrepareDetailsForLayout(const QHash<quint32, VDetail> *de
 //---------------------------------------------------------------------------------------------------------------------
 void MainWindowsNoGUI::InitTempLayoutScene()
 {
-    tempSceneLayout = new VMainGraphicsScene();
+    tempSceneLayout = new QGraphicsScene();
     tempSceneLayout->setBackgroundBrush( QBrush(QColor(Qt::gray), Qt::SolidPattern) );
 }
+
+//---------------------------------------------------------------------------------------------------------------------
+QIcon MainWindowsNoGUI::ScenePreview(int i) const
+{
+    QImage image;
+    QGraphicsRectItem *paper = qgraphicsitem_cast<QGraphicsRectItem *>(papers.at(i));
+    if (paper)
+    {
+        const QRectF r = paper->rect();
+        // Create the image with the exact size of the shrunk scene
+        image = QImage(QSize(static_cast<qint32>(r.width()), static_cast<qint32>(r.height())), QImage::Format_RGB32);
+
+        if (not image.isNull())
+        {
+            image.fill(Qt::white);
+            QPainter painter(&image);
+            painter.setFont( QFont( "Arial", 8, QFont::Normal ) );
+            painter.setRenderHint(QPainter::Antialiasing, true);
+            painter.setPen(QPen(Qt::black, qApp->toPixel(qApp->widthMainLine()), Qt::SolidLine, Qt::RoundCap,
+                                Qt::RoundJoin));
+            painter.setBrush ( QBrush ( Qt::NoBrush ) );
+            scenes.at(i)->render(&painter);
+            painter.end();
+        }
+        else
+        {
+            qWarning()<<"Cannot create image. Size too big";
+        }
+    }
+    else
+    {
+        image = QImage(QSize(101, 146), QImage::Format_RGB32);
+        image.fill(Qt::white);
+    }
+    return QIcon(QBitmap::fromImage(image));
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void MainWindowsNoGUI::CreateShadows()
+{
+    for (int i=0; i< papers.size(); ++i)
+    {
+        qreal x1=0, y1=0, x2=0, y2=0;
+        QGraphicsRectItem *item = qgraphicsitem_cast<QGraphicsRectItem *>(papers.at(i));
+        if (item)
+        {
+            item->rect().getCoords(&x1, &y1, &x2, &y2);
+            QGraphicsRectItem *shadowPaper = new QGraphicsRectItem(QRectF(x1+4, y1+4, x2+4, y2+4));
+            shadowPaper->setBrush(QBrush(Qt::black));
+            shadows.append(shadowPaper);
+        }
+        else
+        {
+            shadows.append(nullptr);
+        }
+    }
+}
+
+//---------------------------------------------------------------------------------------------------------------------
+void MainWindowsNoGUI::CreateScenes()
+{
+    for (int i=0; i<papers.size(); ++i)
+    {
+        QGraphicsScene *scene = new QGraphicsScene();
+        scene->setBackgroundBrush(QBrush(QColor(Qt::gray), Qt::SolidPattern));
+        scene->addItem(shadows.at(i));
+        scene->addItem(papers.at(i));
+
+        QList<QGraphicsItem *> paperDetails = details.at(i);
+        for (int i=0; i < paperDetails.size(); ++i)
+        {
+            scene->addItem(paperDetails.at(i));
+        }
+
+        scenes.append(scene);
+    }
+}
diff --git a/src/app/mainwindowsnogui.h b/src/app/mainwindowsnogui.h
index 4edbb8f93..4a426f86e 100644
--- a/src/app/mainwindowsnogui.h
+++ b/src/app/mainwindowsnogui.h
@@ -33,7 +33,8 @@
 
 #include "../geometry/vdetail.h"
 #include "../libs/vlayout/vlayoutdetail.h"
-#include "../widgets/vmaingraphicsscene.h"
+
+class QGraphicsScene;
 
 class MainWindowsNoGUI : public QMainWindow
 {
@@ -42,24 +43,38 @@ public:
     MainWindowsNoGUI(QWidget *parent = nullptr);
     virtual ~MainWindowsNoGUI();
 
+public slots:
+    void ToolLayoutSettings(bool checked);
+
 protected:
     QVector<VLayoutDetail> listDetails;
 
     /** @brief currentScene pointer to current scene. */
-    VMainGraphicsScene *currentScene;
+    QGraphicsScene *currentScene;
 
-    VMainGraphicsScene *tempSceneLayout;
+    QGraphicsScene *tempSceneLayout;
 
     /** @brief pattern container with data (points, arcs, splines, spline paths, variables) */
     VContainer         *pattern;
 
+    QList<QGraphicsItem *> papers;
+    QList<QGraphicsItem *> shadows;
+    QList<QGraphicsScene *> scenes;
+    QList<QList<QGraphicsItem *> > details;
+
     void PrepareDetailsForLayout(const QHash<quint32, VDetail> *details);
 
     void InitTempLayoutScene();
+    virtual void ClearLayout()=0;
+    virtual void PrepareSceneList()=0;
+    QIcon ScenePreview(int i) const;
 
 private:
     Q_DISABLE_COPY(MainWindowsNoGUI)
 
+    void CreateShadows();
+    void CreateScenes();
+
 };
 
 #endif // MAINWINDOWSNOGUI_H
diff --git a/src/app/tools/drawTools/vtoolalongline.cpp b/src/app/tools/drawTools/vtoolalongline.cpp
index 616567143..2fb5c2587 100644
--- a/src/app/tools/drawTools/vtoolalongline.cpp
+++ b/src/app/tools/drawTools/vtoolalongline.cpp
@@ -189,7 +189,8 @@ void VToolAlongLine::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolAlongLine *visual = new VisToolAlongLine(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolarc.cpp b/src/app/tools/drawTools/vtoolarc.cpp
index 9fe94e448..57ab391d3 100644
--- a/src/app/tools/drawTools/vtoolarc.cpp
+++ b/src/app/tools/drawTools/vtoolarc.cpp
@@ -293,7 +293,8 @@ void VToolArc::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolArc * visual = new VisToolArc(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolbisector.cpp b/src/app/tools/drawTools/vtoolbisector.cpp
index 025adcf0a..4361b76a7 100644
--- a/src/app/tools/drawTools/vtoolbisector.cpp
+++ b/src/app/tools/drawTools/vtoolbisector.cpp
@@ -347,7 +347,8 @@ void VToolBisector::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolBisector * visual = new VisToolBisector(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolcurveintersectaxis.cpp b/src/app/tools/drawTools/vtoolcurveintersectaxis.cpp
index eb81c8a01..7bcd8ea8d 100644
--- a/src/app/tools/drawTools/vtoolcurveintersectaxis.cpp
+++ b/src/app/tools/drawTools/vtoolcurveintersectaxis.cpp
@@ -227,7 +227,8 @@ void VToolCurveIntersectAxis::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolCurveIntersectAxis * visual = new VisToolCurveIntersectAxis(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolcutarc.cpp b/src/app/tools/drawTools/vtoolcutarc.cpp
index c2eacbccb..6f2876c63 100644
--- a/src/app/tools/drawTools/vtoolcutarc.cpp
+++ b/src/app/tools/drawTools/vtoolcutarc.cpp
@@ -192,7 +192,8 @@ void VToolCutArc::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolCutArc * visual = new VisToolCutArc(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolcutspline.cpp b/src/app/tools/drawTools/vtoolcutspline.cpp
index 6690f2737..e4f2690c5 100644
--- a/src/app/tools/drawTools/vtoolcutspline.cpp
+++ b/src/app/tools/drawTools/vtoolcutspline.cpp
@@ -202,7 +202,8 @@ void VToolCutSpline::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolCutSpline * visual = new VisToolCutSpline(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolcutsplinepath.cpp b/src/app/tools/drawTools/vtoolcutsplinepath.cpp
index f160d41ef..211022387 100644
--- a/src/app/tools/drawTools/vtoolcutsplinepath.cpp
+++ b/src/app/tools/drawTools/vtoolcutsplinepath.cpp
@@ -246,7 +246,8 @@ void VToolCutSplinePath::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolCutSplinePath *visual = new VisToolCutSplinePath(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolendline.cpp b/src/app/tools/drawTools/vtoolendline.cpp
index bc23fc022..d69a26404 100644
--- a/src/app/tools/drawTools/vtoolendline.cpp
+++ b/src/app/tools/drawTools/vtoolendline.cpp
@@ -287,7 +287,8 @@ void VToolEndLine::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolEndLine * visual = new VisToolEndLine(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolheight.cpp b/src/app/tools/drawTools/vtoolheight.cpp
index fc021dc66..84acc0609 100644
--- a/src/app/tools/drawTools/vtoolheight.cpp
+++ b/src/app/tools/drawTools/vtoolheight.cpp
@@ -291,7 +291,8 @@ void VToolHeight::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolHeight * visual = new VisToolHeight(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolline.cpp b/src/app/tools/drawTools/vtoolline.cpp
index d440acef4..20fa07a60 100644
--- a/src/app/tools/drawTools/vtoolline.cpp
+++ b/src/app/tools/drawTools/vtoolline.cpp
@@ -428,7 +428,8 @@ void VToolLine::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolLine * visual = new VisToolLine(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoollineintersect.cpp b/src/app/tools/drawTools/vtoollineintersect.cpp
index 050a7d044..10ce3e675 100644
--- a/src/app/tools/drawTools/vtoollineintersect.cpp
+++ b/src/app/tools/drawTools/vtoollineintersect.cpp
@@ -309,7 +309,8 @@ void VToolLineIntersect::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolLineIntersect * visual = new VisToolLineIntersect(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoollineintersectaxis.cpp b/src/app/tools/drawTools/vtoollineintersectaxis.cpp
index eadae8e6d..a6ead89bc 100644
--- a/src/app/tools/drawTools/vtoollineintersectaxis.cpp
+++ b/src/app/tools/drawTools/vtoollineintersectaxis.cpp
@@ -239,7 +239,8 @@ void VToolLineIntersectAxis::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolLineIntersectAxis * visual = new VisToolLineIntersectAxis(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolnormal.cpp b/src/app/tools/drawTools/vtoolnormal.cpp
index d5aef5670..9b6f4e4e8 100644
--- a/src/app/tools/drawTools/vtoolnormal.cpp
+++ b/src/app/tools/drawTools/vtoolnormal.cpp
@@ -324,7 +324,8 @@ void VToolNormal::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolNormal * visual = new VisToolNormal(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolpointofcontact.cpp b/src/app/tools/drawTools/vtoolpointofcontact.cpp
index 360d8a4b0..14bf954fc 100644
--- a/src/app/tools/drawTools/vtoolpointofcontact.cpp
+++ b/src/app/tools/drawTools/vtoolpointofcontact.cpp
@@ -355,7 +355,8 @@ void VToolPointOfContact::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolPointOfContact * visual = new VisToolPointOfContact(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolpointofintersection.cpp b/src/app/tools/drawTools/vtoolpointofintersection.cpp
index 7908fa150..7ea98a311 100644
--- a/src/app/tools/drawTools/vtoolpointofintersection.cpp
+++ b/src/app/tools/drawTools/vtoolpointofintersection.cpp
@@ -260,7 +260,8 @@ void VToolPointOfIntersection::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolPointOfIntersection * visual = new VisToolPointOfIntersection(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolshoulderpoint.cpp b/src/app/tools/drawTools/vtoolshoulderpoint.cpp
index fbfa389bf..4537df002 100644
--- a/src/app/tools/drawTools/vtoolshoulderpoint.cpp
+++ b/src/app/tools/drawTools/vtoolshoulderpoint.cpp
@@ -353,7 +353,8 @@ void VToolShoulderPoint::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolShoulderPoint * visual = new VisToolShoulderPoint(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/tools/drawTools/vtoolspline.cpp b/src/app/tools/drawTools/vtoolspline.cpp
index 897ecfc6a..cd04d94e5 100644
--- a/src/app/tools/drawTools/vtoolspline.cpp
+++ b/src/app/tools/drawTools/vtoolspline.cpp
@@ -237,7 +237,8 @@ void VToolSpline::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolSpline *visual = new VisToolSpline(getData(), this);
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
 
             const QSharedPointer<VSpline> spl = VAbstractTool::data.GeometricObject<VSpline>(id);
diff --git a/src/app/tools/drawTools/vtoolsplinepath.cpp b/src/app/tools/drawTools/vtoolsplinepath.cpp
index 414becdaa..9fd9947dd 100644
--- a/src/app/tools/drawTools/vtoolsplinepath.cpp
+++ b/src/app/tools/drawTools/vtoolsplinepath.cpp
@@ -318,7 +318,8 @@ void VToolSplinePath::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolSplinePath *visual = new VisToolSplinePath(getData(), this);
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
 
             QSharedPointer<VSplinePath> splPath = VAbstractTool::data.GeometricObject<VSplinePath>(id);
diff --git a/src/app/tools/drawTools/vtooltriangle.cpp b/src/app/tools/drawTools/vtooltriangle.cpp
index b3071bbba..965d629c7 100644
--- a/src/app/tools/drawTools/vtooltriangle.cpp
+++ b/src/app/tools/drawTools/vtooltriangle.cpp
@@ -325,7 +325,8 @@ void VToolTriangle::ShowVisualization(bool show)
         if (vis == nullptr)
         {
             VisToolTriangle * visual = new VisToolTriangle(getData());
-            VMainGraphicsScene *scene = qApp->getCurrentScene();
+            VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
+            SCASSERT(scene != nullptr)
             connect(scene, &VMainGraphicsScene::NewFactor, visual, &Visualization::SetFactor);
             scene->addItem(visual);
 
diff --git a/src/app/visualization/visualization.cpp b/src/app/visualization/visualization.cpp
index 66dc9a856..f14f3a9c7 100644
--- a/src/app/visualization/visualization.cpp
+++ b/src/app/visualization/visualization.cpp
@@ -67,7 +67,7 @@ void Visualization::setScenePos(const QPointF &value)
 //---------------------------------------------------------------------------------------------------------------------
 void Visualization::VisualMode(const quint32 &pointId)
 {
-    VMainGraphicsScene *scene = qApp->getCurrentScene();
+    VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
     SCASSERT(scene != nullptr);
 
     this->point1Id = pointId;
diff --git a/src/app/visualization/visualization.h b/src/app/visualization/visualization.h
index 860db38d9..c72d21ad2 100644
--- a/src/app/visualization/visualization.h
+++ b/src/app/visualization/visualization.h
@@ -87,7 +87,7 @@ protected:
     void         AddItem(Item *item)
     {
         SCASSERT(item != nullptr);
-        VMainGraphicsScene *scene = qApp->getCurrentScene();
+        VMainGraphicsScene *scene = qobject_cast<VMainGraphicsScene *>(qApp->getCurrentScene());
         SCASSERT(scene != nullptr);
 
         scene->addItem(item);