Keys and Locks

[Invective]

I would like to know if its possible to have 1 key work on 4 locks. I have a base with 4 gates and plan to have a couple layers adding a bunch more gates. This is going to be alot of keys

[IronicToast]

a single key can work on an unlimited number of locks, but a lock can only have one key (i.e. you can't attach multiple keys to a single lock)