I've finally found a use for these DPDT switches which I've had stashed for aaaaaaaages. They are DPDT, but one side is momentary. So they are ON, Centre OFF, MOMENTARY. I will incorporate one into the LED downlight display. I will also add a 40106 to the selection to help de-bounce for me. I tried a plain RC de-bounce, but I can never get them to work properly.
The customer will be able to switch the 'cycling' of the lamps from up 'Auto', to centre 'Stop' and also multiple presses on the momentary side they can manually select the lit lamp.
I am considering whether it's worth it putting an ammeter and volt meter on there.
Should be pretty cool.