I am asking because when I choose one wing at the drafting table, it seems to be replaced when I choose another wing. Can I have a north, west, and east wing?

Yes, but you have to finish building one before switching it at the drafting table.

http://www.youtube.com/watch?v=Jt061BAbkQs

Yes. when you choose a North,East,West wing. you have to finish it before you can build the Other wings.


EX

A - EAST
B - NORTH
C- WEST


I choose b, i cannot Make C because i need to Finish B