I recently bought a new keypad due to the old one having been broken. I've looked through the manual and I'm struggling as the keypad is the only way I had to control the system and I can't figure out how to have the system "learn" it without it being able to control anything - like the tamper - and I don't know whether the system remembers the old code or whether it will be back to the default code. Any help, preferably step by step, gratefully received.