Lew,
So how does that apply to Windows, Doors and Basement Walls?
Perhaps CA could program a new feature but that doesn't necessarily mean they should.
IAE, it would require an entirely different type of object that could be recognized as being substituted for a wall (to define a room) and would need very special handling of doors and windows. ie:
Where and how are those items placed in this object?
Would Doors be placed at the interior face and how thick would the Jamb be?
Would the Windows be placed the same or on the slope of the exterior face and how thick would the Jamb be?
The possible parameters and conditions are too varied to make this a reasonable software automated solution. It's a programming nightmare - a virtual "rabbit hole".