Can anyone help please. I’ve just replaced a battery in my alarm and I think I may have pressed some buttons that I shouldn’t of when trying to get out of the engineer section. When I do a full set now only lights 1 and 6 show when it’s setting. When I enter my hallway now it doesn’t beep like it used to for me to put my code in. If I enter my other two rooms it sets off the alarm straightaway like it’s meant to. Can anyone help me to switch the hallway back on to the entry/exit zone please. I’ve got a user guide but I don’t understand it. Thanks in advance for any help.