I could only find a way to append groupend and start, so I appended and then moved to pos... (see below)
Is this appropriate or is there a better way?  Also, should I expect my tool bars to wrap at the groupend markers or are the markers just there for aesthetics?


            Editor1.AddToolbarGroupEnd();
            Editor1.AddToolbarGroupStart();
            int count = Editor1.ToolControls.Count-1;
            CuteEditor.ToolControl tool = Editor1.ToolControls[count--];
            Editor1.ToolControls.Insert(pos,tool);
            tool = Editor1.ToolControls[count--];
            Editor1.ToolControls.Insert(pos,tool);