There's been so many people asking how to insert shape data in sub-shapes, that I thought a tool for automating the job would be useful.
I submit the tool as stencil, from which the starter shape can be pulled on the drawing to show the actual form.
May it help someone,
Yacine
I did also consider connectors.
PS 2016-05-08:
You may want to see the tool in action here: https://youtu.be/Y9nH38RrMhE (https://youtu.be/Y9nH38RrMhE)