Thanks for the reply Dieter.
Here's another idea... a new A-161-2 module. It would interface to the PCB of the A-160 (like the current A-161) and instead of having just the 8 gate outputs and LEDs it would have 8 individual switchable gate outputs and an extra combined output which ORs all the outputs set to 'on'. It would probably need to be 6 or 8 HP to include the extra socket and 9 switches (8 stage on/off switches + AC/DC switch).
I think lots of people would buy this to go with their A-160! What do you think
Cheers
Rich