Help with detectoing touched

Hi, im making an ai, i made the collision groups. Monster and Doors are different collision groups, is there any way i can detect if a part of the monster touched the door?

I don’t know about collision groups that much, but I think making a third collision group and applying it to both monster and door should fix the problem.

You could make a collision group for both the door and the monster and set nocollisions for the group to false