The new Edit Terrain Object module is very nice! I think a logical addition to its functionality would be to give mission editors the ability to lock doors through the module interface. This is currently achievable through scripting via nearestTerrainObjects + _x setVariable ['bis_disabled_Door_1',1]; however, doing it through the UI is much more intuitive and convenient, just like how the current UI is much more convenient than using animateDoor or setHitPointDamage.

This could be incorporated into the door portion of the existing UI; instead of toggling door open and door closed, it could be switched to cycle through door open, door closed, and door locked.