So as the title says, there should be an option to enable/disable door collision, but why though?
Doors (or movable object) are essential when it comes to map-making. They can moving regions, decors, and such, but doors are "collidable" to both players and actors, which is not good since this cause doors to block players. Thus door collision is a huge burden to map-maker so it is really helpful if there a way to disable that without using bugs.