diff -r 803daf19a1b5 -r 7fad75e5e63d editors/SFCViewer.py
--- a/editors/SFCViewer.py	Mon Oct 01 14:29:01 2018 +0300
+++ b/editors/SFCViewer.py	Mon Oct 01 15:36:01 2018 +0300
@@ -548,7 +548,7 @@
                 dialog.Destroy()
 
     def AddDivergence(self):
-        if self.SelectedElement in self.Wires or isinstance(self.SelectedElement, Graphic_Group) or isinstance(self.SelectedElement, SFC_Step):
+        if self.SelectedElement in self.Wires or isinstance(self.SelectedElement, (Graphic_Group, SFC_Step)):
             dialog = SFCDivergenceDialog(self.ParentWindow, self.Controler, self.TagName)
             dialog.SetPreviewFont(self.GetFont())
             if dialog.ShowModal() == wx.ID_OK: