Yes you do: the Yale Doorman needs to “take over” the entire implant. Well, strictly speaking, it only uses the first 6 sectors, but unless you’re lucky and the security system at your workplace only uses UIDs and you can convince the manager to enroll your Yale Doorman’s UID, you’re unlikely to use the Yale Doorman implant for anything other than your own stuff.
The Yale Doorman will work with a glass M1k (xM1) and a bit better with a flexM1. Not much better, but a bit better.
You’ll also need to procure a genuine Yale tag and exact-clone it into the implant. Or if you want to save money, I can send you a dump of one of my unused tags 