diff --git a/src/libs/vtools/dialogs/tools/dialogpiecepath.cpp b/src/libs/vtools/dialogs/tools/dialogpiecepath.cpp
index 9e08bdd31..fb3690b68 100644
--- a/src/libs/vtools/dialogs/tools/dialogpiecepath.cpp
+++ b/src/libs/vtools/dialogs/tools/dialogpiecepath.cpp
@@ -127,26 +127,36 @@ void DialogPiecePath::ChosenObject(quint32 id, const SceneObject &type)
         {
             reverse = true;
         }
-        switch (type)
+        if (id != GetLastId())
         {
-            case SceneObject::Arc:
-                NewItem(VPieceNode(id, Tool::NodeArc, reverse));
-                break;
-            case SceneObject::Point:
-                NewItem(VPieceNode(id, Tool::NodePoint));
-                break;
-            case SceneObject::Spline:
-                NewItem(VPieceNode(id, Tool::NodeSpline, reverse));
-                break;
-            case SceneObject::SplinePath:
-                NewItem(VPieceNode(id, Tool::NodeSplinePath, reverse));
-                break;
-            case (SceneObject::Line):
-            case (SceneObject::Detail):
-            case (SceneObject::Unknown):
-            default:
-                qDebug() << "Got wrong scene object. Ignore.";
-                break;
+            switch (type)
+            {
+                case SceneObject::Arc:
+                    NewItem(VPieceNode(id, Tool::NodeArc, reverse));
+                    break;
+                case SceneObject::Point:
+                    NewItem(VPieceNode(id, Tool::NodePoint));
+                    break;
+                case SceneObject::Spline:
+                    NewItem(VPieceNode(id, Tool::NodeSpline, reverse));
+                    break;
+                case SceneObject::SplinePath:
+                    NewItem(VPieceNode(id, Tool::NodeSplinePath, reverse));
+                    break;
+                case (SceneObject::Line):
+                case (SceneObject::Detail):
+                case (SceneObject::Unknown):
+                default:
+                    qDebug() << "Got wrong scene object. Ignore.";
+                    break;
+            }
+        }
+        else
+        {
+            if (ui->listWidget->count() > 1)
+            {
+                delete GetItemById(id);
+            }
         }
 
         ValidObjects(PathIsValid());
@@ -163,7 +173,14 @@ void DialogPiecePath::ChosenObject(quint32 id, const SceneObject &type)
                 emit ToolTip(tr("Select main path objects, <b>Shift</b> - reverse direction curve, "
                                 "<b>Enter</b> - finish creation"));
 
-                visPath->VisualMode(NULL_ID);
+                if (not qApp->getCurrentScene()->items().contains(visPath))
+                {
+                    visPath->VisualMode(NULL_ID);
+                }
+                else
+                {
+                    visPath->RefreshGeometry();
+                }
             }
             else
             {
@@ -545,6 +562,22 @@ QListWidgetItem *DialogPiecePath::GetItemById(quint32 id)
     return nullptr;
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+quint32 DialogPiecePath::GetLastId() const
+{
+    const int count = ui->listWidget->count();
+    if (count > 0)
+    {
+        QListWidgetItem *item = ui->listWidget->item(count-1);
+        const VPieceNode node = qvariant_cast<VPieceNode>(item->data(Qt::UserRole));
+        return node.GetId();
+    }
+    else
+    {
+        return NULL_ID;
+    }
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void DialogPiecePath::SetCurrentSABefore(qreal value)
 {
diff --git a/src/libs/vtools/dialogs/tools/dialogpiecepath.h b/src/libs/vtools/dialogs/tools/dialogpiecepath.h
index 75c51429f..c1f06c163 100644
--- a/src/libs/vtools/dialogs/tools/dialogpiecepath.h
+++ b/src/libs/vtools/dialogs/tools/dialogpiecepath.h
@@ -99,6 +99,8 @@ private:
 
     QListWidgetItem *GetItemById(quint32 id);
 
+    quint32 GetLastId() const;
+
     void SetCurrentSABefore(qreal value);
     void SetCurrentSAAfter(qreal value);
 };
diff --git a/src/libs/vtools/dialogs/tools/dialogseamallowance.cpp b/src/libs/vtools/dialogs/tools/dialogseamallowance.cpp
index 7a9b62e7b..9407993e9 100644
--- a/src/libs/vtools/dialogs/tools/dialogseamallowance.cpp
+++ b/src/libs/vtools/dialogs/tools/dialogseamallowance.cpp
@@ -202,26 +202,36 @@ void DialogSeamAllowance::ChosenObject(quint32 id, const SceneObject &type)
         {
             reverse = true;
         }
-        switch (type)
+        if (id != GetLastId())
         {
-            case SceneObject::Arc:
-                NewMainPathItem(VPieceNode(id, Tool::NodeArc, reverse));
-                break;
-            case SceneObject::Point:
-                NewMainPathItem(VPieceNode(id, Tool::NodePoint));
-                break;
-            case SceneObject::Spline:
-                NewMainPathItem(VPieceNode(id, Tool::NodeSpline, reverse));
-                break;
-            case SceneObject::SplinePath:
-                NewMainPathItem(VPieceNode(id, Tool::NodeSplinePath, reverse));
-                break;
-            case (SceneObject::Line):
-            case (SceneObject::Detail):
-            case (SceneObject::Unknown):
-            default:
-                qDebug() << "Got wrong scene object. Ignore.";
-                break;
+            switch (type)
+            {
+                case SceneObject::Arc:
+                    NewMainPathItem(VPieceNode(id, Tool::NodeArc, reverse));
+                    break;
+                case SceneObject::Point:
+                    NewMainPathItem(VPieceNode(id, Tool::NodePoint));
+                    break;
+                case SceneObject::Spline:
+                    NewMainPathItem(VPieceNode(id, Tool::NodeSpline, reverse));
+                    break;
+                case SceneObject::SplinePath:
+                    NewMainPathItem(VPieceNode(id, Tool::NodeSplinePath, reverse));
+                    break;
+                case (SceneObject::Line):
+                case (SceneObject::Detail):
+                case (SceneObject::Unknown):
+                default:
+                    qDebug() << "Got wrong scene object. Ignore.";
+                    break;
+            }
+        }
+        else
+        {
+            if (ui->listWidgetMainPath->count() > 1)
+            {
+                delete GetItemById(id);
+            }
         }
 
         ValidObjects(MainPathIsValid());
@@ -238,7 +248,14 @@ void DialogSeamAllowance::ChosenObject(quint32 id, const SceneObject &type)
                 emit ToolTip(tr("Select main path objects clockwise, <b>Shift</b> - reverse direction curve, "
                                 "<b>Enter</b> - finish creation"));
 
-                visPath->VisualMode(NULL_ID);
+                if (not qApp->getCurrentScene()->items().contains(visPath))
+                {
+                    visPath->VisualMode(NULL_ID);
+                }
+                else
+                {
+                    visPath->RefreshGeometry();
+                }
             }
             else
             {
@@ -925,6 +942,22 @@ QListWidgetItem *DialogSeamAllowance::GetItemById(quint32 id)
     return nullptr;
 }
 
+//---------------------------------------------------------------------------------------------------------------------
+quint32 DialogSeamAllowance::GetLastId() const
+{
+    const int count = ui->listWidgetMainPath->count();
+    if (count > 0)
+    {
+        QListWidgetItem *item = ui->listWidgetMainPath->item(count-1);
+        const VPieceNode node = qvariant_cast<VPieceNode>(item->data(Qt::UserRole));
+        return node.GetId();
+    }
+    else
+    {
+        return NULL_ID;
+    }
+}
+
 //---------------------------------------------------------------------------------------------------------------------
 void DialogSeamAllowance::SetCurrentSABefore(qreal value)
 {
diff --git a/src/libs/vtools/dialogs/tools/dialogseamallowance.h b/src/libs/vtools/dialogs/tools/dialogseamallowance.h
index c761f8d76..2890ea3f4 100644
--- a/src/libs/vtools/dialogs/tools/dialogseamallowance.h
+++ b/src/libs/vtools/dialogs/tools/dialogseamallowance.h
@@ -105,6 +105,8 @@ private:
 
     QListWidgetItem *GetItemById(quint32 id);
 
+    quint32 GetLastId() const;
+
     void SetCurrentSABefore(qreal value);
     void SetCurrentSAAfter(qreal value);
 };