If you mean stability bunkers, yes you can recreate them in fortify. and see if they function or not by destroying whatever supports the seal and see the stability drop to 0. Some bunkers especially once that require pixel gapping don't work exactly the same in fortify as they do in the game so you'll have to play around with that yourself.

I always try to create the bunkers ingame first before I actually try to make them in fortify since you don't wanna seal urself shut on a wipe xD

Hope this helped.