I did a quick google on various alternatives for "Household electrical patch panel" and found nothing of interest. (Although that could be noise from "Household network patch panel").
Then I thought about the problem, and came up with an 18-switch solution:
2 Single pole switches (On/Off) (Or three ways, if you're doing the masters at two locations) -- These are the on/off for each bank.
16 Double pole switches (Circuit1 / Circuit2) -- These determine which bank a light is on.
You may wish to use single strand wiring.
Run a common neutral and ground to each light.
Run the Switched power out of the single poles to the outer terminals of the double poles. I'd use colored wire (Red for circuit 1, and Blue for 2 -- These are switched hots)
From the central terminal of each double pole, run another switched hot (say, Yellow) to each light. (one light per switch.)
You could of course, double up lights and save on switches, but no matter how you do it, there's going to be a lot of wire. I'm also concerned about the real estate needed for all these switches.
This only works if you can get all lights on a single circuit.
This is not extensible to more than 2 banks (Unless you can find multi-pole selector switches.)
Why not just go with 2 4-gang switch plates, and pair two adjacent lights to each switch.