I work on a lot of alterations, and want to know the best way to have existing and new elements, that you can show and hide depending on the sheet. Is there a way to do this similar to Revit? I expect that you would create issues overlaying 2 different Buildings on top of one another, with awkward junctions and errors.
Is this possible, or is it better to create 2 different 3D models, one existing, one new and treat it like you would AutoCad?