Part Arms With A Texecom Premier 24

I have a Texecom Premier 24 panel and would like to create an 'auto yes' function for certain users so that it puts it into a particular part arm.

Basically when I want to set the system to fully arm, I am happy to press the <AREA> button and when I want to set either part arm 1, 2, or 3, I am happy to press <PART> and then select the relevant part arm e.g. for going to bed or just securing the perimeter whilst inside.

My problem is that I have a disabled father living in one of the rooms who rarely leaves but has carers who come in daily.

What I need is to adapt the panel so that when I press <AREA>, the whole building alarms and when I press <PART> I can choose a relevant part arm but when a carer wants to leave, they flash a fob and 'Part 1' is automatically selected, similar to the 'auto yes' option.

Has anyone come across this demand before and solved it or can this be implemented?

Thanks

Ben

P.S. Sorry it's a bit long winded, feel free to reply for clarification on anything.