I would like to tag a fixture or device with more than one circuit number.

It is common for us to take a three-lamp light fixture with two ballasts and circuit the centre lamp from emergency power and the outside two from normal power. My families have two connectors and I can correctly circuit the loads to both panels, but I can only tag one circuit.

I realize there are workarounds (short wires, dumb text, multiple fixtures, etc) but it would be nice to have the function available.