I hereby request to allow non solid entities to be linked into Bodies in an automagic way so the user does not need to first create a "link container".
Use case example 1: you have several surfaces outside of the Body which are connected and form a "closed surface" thingie. Now you want this to be made/transformed into a solid inside your Body.
Use case example 2: you have a point on a plane outside of the Body you whish to utilize inside your Body.
Use case example 3: you have a surface outside of the Bodyand now you want to make thickness on/from it inside your Body.
... and so on ...
It would also be nice if the linked geometry could be given an own icon resembling the original geometry with a added "curved arrow" to indicate it originate from somewhere else.