The idea is simple: allow elevators to be merged, almost the same as with animated signs. You have one small elevator, stack one on the top - you have large elevator, stack one more - extra large. On a side note, building elevator cabin around moving platform would make much more sence. Skyscrapers everyone!
http://community.playstarbound.com/threads/build-able-elevators.103318/ Older post with same idea http://community.playstarbound.com/threads/elevators-with-closing-doors-on-top.105127/ similar mention http://community.playstarbound.com/threads/elevators.23886/ before elevators were a real thing
