This is actually a very good idea. I would personally love an easy reconfiguration that I can pre-design myself: a young kid --> cut off a master bedroom chunk

This is actually a very good idea. I would personally love an easy reconfiguration that I can pre-design myself: a young kid --> cut off a master bedroom chunk for a semi-detached room; older kid -> his own room, (teen -> full enclosure, enter from the roof :) ) If it is relatively quick/automatic one could reconfigure before/after visiting friends.