I have self installed the Pyronix Enforcer Kit 1 with 3 extra sensors in my Flat.
I only have 5 PIR's and the door sensor set up as below.
1. Door sensor is final exit - Area A + B
2. Hall PIR as Entry route - Area A
3. Living Room PIR - Area A + B
4. Kitchen PIR Intruder - Area A + B
5...