--- a/UI/UserInterface.py Sun Aug 26 15:54:51 2018 +0200 +++ b/UI/UserInterface.py Sun Aug 26 17:15:17 2018 +0200 @@ -1112,7 +1112,8 @@ @param icon icon to be used (QIcon) @param label label text to be shown (string) """ - assert side in [UserInterface.LeftSide, UserInterface.BottomSide] + assert side in [UserInterface.LeftSide, UserInterface.BottomSide, + UserInterface.RightSide] if self.__layoutType == "Toolboxes": if side == UserInterface.LeftSide: