Rules or conditions in POIs

There should be a way to add certain rules or conditions in specific POIs.

For example if a POI is a secret chamber only a certain Key could open the access door to that POI.

Or If a certain object inside this POI is touched a monster must spawn immediately, or maybe a demon character is unnable to leave a certain POI no matter what.

And additionally a mechanic for traps can be incorporated, like a Dexterity or stealth check in some area inside the POI