Padlock Question

[Nevicar]

Tested, nothing happened still, the padlock on the door doesn't disappear.

Edit: I've moved the lock and now it can at least be manipulated. So I need to change what I've asked. I want the padlock to despawn when I add the key to it.

IE: I have a prison style door with a lock to do it manually instead of with a key. I want to take the key, apply it to the lock, and have the lock disappear.