Feature request title:
I know that one way (single direction) roads are coming, but what about door? Something like the security zone exit but applicable to every door type. The user can then decide if that door should be functioning and allowing transit in both direction or a single one.
Why it should be implemented:
This is extremely useful in crowd management, especially with large aircraft. Can be used to create different boarding and exit path with gates as you can see from the screenshot below (one gate has the jetway, the other is a remote stand with the shuttle bus stop at the floor below).
Images, references or additional content: