Hi,
does anybody have any idea how I can hide the common edge of two identical rectangular floors (drew by Structure -> Group Structure, Floor-tool ) beside each other? E. g. by overriding the visibility Options.

For some analytical and technical reasons I have to draw two seperate floors although they are of same thickness, material etc.
Showing the common edge would mean e. g. in a formwork drawing that this two plates have different thicknesses.
As a possible Option one could draw the plates by the foundation slab tool. But then it is not BIM-consistent, as a floor is not a foundation slab 
Thank you.