Stairs again...

@eufl, I used the fences since Metaphasic specifically wanted a fenced balcony. However, I have noticesd that-in general- whenever a floorless room and a floored room, without walls in between touch, they merge either immediately or whenever I restart the game. So I haven't made that work yet. I am however super curious as to your method, maybe it will allow me to do something I have been meaning to try for a while now, I can't completely visualize your method right now :)