This is a door i put together with a trigger and an item. The trigger controls the door closing and opening when you enter it. Enter the trigger with the item and the door opens, enter without and it doesn't. Very simple.
I did this so that i could have a cool way to give access to an area as a quest reward. This is very easy using the Grounding Rod item as the reward.
Import the erf, it shouldn't ask to overwrite anything. It adds an electric door, electric grounding rod, trigger and 2 scripts. All items were put into custom 4 of their respective categories.
Place the door and then place the trigger across the doorway so its across the doorway covering both sides. Add the Grounding Rod to your mod to be able to use the door.