Hi All,
I was giving a view of Jose Tijerin's really nice tutorial on the official Reallusion YouTube: 
https://youtu.be/zJ0pcfx-xpw?t=398
And was curious: 
At that timestamp he's using BuildingGen to generate the interior of a subway train a bit more quickly -- though it's symmetrical and not necessarily as complex as the interior of a regular building. 

Is there a way to setup BuildingGen to do interiors instead of exteriors with any feeling of flexibility like: 
Generate a hallway that will lead to one room from another, etc? 

Thank you! 

BuildingGen is a modular system that arranges building parts according to a set of rules that can be controlled by the developer or user. Rules like where to put doors, windows, corners, etc. See these tutorials for setting up BuildingGen to use imported content. You could create internal spaces by creating the internal facing components of a building, rather than the external.