Veritas will be difficult even the electrician's can't do them fully
Start with Honeywell g4 - 9651 - galaxy g2-12 - then dive into a dimension on left hand and premier elite in right at same time
If you don't use it, a d don't think you need security , switch it all off end of story
I assume you didn't have it installed and was already there , cats or no cats alarms can work with pets if make adjustments
All depends on how much you want to spend on it and wether you think yourselves or anything in the house worth having some kind of protection
On a side the galaxy dimension panel wasn't made for the diyer
Lack of information is more about lack of knowledge, training and experience
So other panels you will find same situation where you don't know what it can and can't do
The versions are upgraded for development and sometimes correcting earlier glitches
Version 7 example was superseded within week I think and so on
Firmware easy to do , just buy it on a stick or if you can get the files there are other ways
Maybe the cable at conservatory has been damaged and now shorting out the supply
So if fuse is ok possible panel damaged , but that won't resolve the issue replacing panel if cable still has a problem
Bell and strobe would be tied together into the normally open side of the relay , then common relay to 0v , I think lol
The tamper you need to for now ground it in the bell if it allows so it ignores it , I think lol
Seems as though you can't programme as above
So you need to use
0v
+12v
Then the relay for the bell trigger , which drops bell trigger to 0v when siren goes
The tamper could be used on a zone in defence mode , look at page 11 , although not a tamper it can act as a 24hr armed zone , but you would have to mess around to make it work
Assuming that zone on the back is programmable it might work , you also have an onboard relay which could be used for a bell trigger depends on what it does
Common problem on these are the spring , users mess around with the cover and screw and realise it was the spring after all
Not surprised by what you're saying you didn't need to do half of what you did but it is how it is, you damage the case
Be gentle adjust spring and your done, or call an engineer... ...