Hi, I'm trying to create a gross building area plan and nothing is working. No area was calculated when I tried to do it automatically, so then I tried to do it manually but again nothing happened so I couldn't manually select the external walls either. I've checked visibility graphics, constraints, still nothing. Tried another thing and the entire floor plan disappeared. Tried YET AGAIN and now, for whatever reason, I can no longer select level 1 as an option. I'm extremely frustrated. Everything thing Revit feels unnecessarily complicated.
