Thank you both for your comments, yesterday I have managed on my own to crack the system apart at the moment from one thing.
So following al-yeti suggestion here it is.
I have 16 zones all working as required in the full set A mode, the system allows for 2 separate areas which should be able to be set individually or together.
I req. zones 11 and 12 to be in the second area, so I can arm them on their own or arm them when req. with the rest in full set.
I have been unable to achieve so far, can anyone take me step by step to set this up.