I have the same HKC alarm. You can discover your zones by leaving a window/door open and then attempting to set the alarm on full. it will complain about an open zone - given you the zone number. If you have infa red - just walk in front of it and it should register on the control panel (maybe a 2 person job) as for inhibting zones, you can press 0+code*zone, them click yes to inhibit zone (we use this all the time when we leave the dog inside the house). I don't know how to change the partial set settings, but I would presume that you would need the admin code.
Mahons