Thanks! Any idea if it's possible to use the floppy LED for this (as well as floppy access)
Should be possible, just connect wires to led already in case instead.
BUT I don't recall if A1200 had some components required by LEDs on the pcb leds are connected to or not... (It's been a while since I moved my A1200 to tower case)
Anyway, I even replaced the HD led on my ATX tower (for Pegasos) with analog meter :-)