I like that ," dome head screw"you got to much CCTV on the brain
Pan head I suppose because it's like a pan shape , hence pan head screw
Just usual hijack thing
It would be a pain having bells go off everytime a tamper goes
You could if you really want to add aaster blaster in the house haha select an output linked to the tamper , have an output that disables it when in engineer mode
But you might get headache
25devices, plus 5call points , Mx addressable panel , remote panel (those small things that cost arm am leg)
Not including cabling cost £4k subbed out with cert liability blah blah blah