EE is the entry exit zone and ET on the keypad is exit terminator so it can be quite confusing
If you thought that was embarrassing you should have seen my alarm service last week
What you want to do is called partitions
The easiest way to do this is to assign each zone to either set A or Ser B then give the customer a code that can only set that area
Well you lucky git I spent today replacing a panel with 40cm clearance between a wall and a red hot freezer back
Tomorrow should be a easy job replacing a exploded veritas 8