Have you ever been surprised when you activate a locked door, but instead of starting to pick the lock, you opened it with some key you don't even remember picking up? Do you miss Fallout 3 and New Vegas replacing the difficulty of the lock with the key that unlocks it? Here's a mod for you. Now when you look at a locked door or container while the key is in your inventory, the rollover text will show the name of the key instead of the lock's difficulty.