Everyone that comes via the plastic ladder is already with a exosuit.
My plan was to have just 1 jet suit (top), and everyone else just pass through with their exosuit (bottom).
I tried many things but couldn't get it to work. Is this possible? Any tips?

Edit: Ok, I think I found a dirty solution...
Everything set as vacancy only. It's not efficient to take away the suit and then put it on again, but it works.

Edit2: There has to be one suit on the bottom docks, or the dupes never even consider going through it.