Lol! Mr data, I like your style!
(I find a Spectrum emulator works well on an i7, though the keyboards are now tricky to get hold of!)
i like the the look of the iON 40H, though I would guess the iON 16 would suit my domestic needs far better.
I’ll have a deeper delv into Eaton (Scantronics?), thanks.
Paul
I'd take great pleasure in ripping this old tat of the wall & slinging it in a skip...
Your panel will have outputs for status & probably zone (inputs) that work as key switch,
You could probably infaces to Pi or whatever which has input & relays
Or buy some modern controls which will run an app