oh, I did not see that it is possible to attach files here
Thank you once again, Jim.
But what if my shapes are for example arranged like in the attached file.
I want the dotted line like the red line excluding shape No. 4.
For many reasons I do not want to re-arrange the shapes.
Do I need to build an own shape that fits exactly in the red line or is there a simpler way?
See attachement