It's all just trickery with some simple relays.
Aux 2 sends power to the 86 pin and the 85 and 30 pin are grounded. The strobe lights have a wire that when grounded changes the flashing pattern, so that is hooked up to the 87 pin. When the momentary switch is pushed, it sends power to the relay and grounds out the pattern change wire on the strobes.
Aux 1 either sends power to, or cuts off power the same way using relays on two of my other circuits, the back up alarm and the extra flashers so I can run the normal strobes independent of those. This allows me to turn on all of my strobes/flashers with one push (aux 6) while also turning off the extra flashing lights (aux 1) when I want just the solid pattern on the main strobes. For example, my back up alarm + goes to relay pin 87, Aux 1 power goes to pin 30, reverse light signal from my trailer light harness goes to pin 86, and pin 85 is grounded. So the reverse lights always power on the relay, but the back up alarm is only powered when Aux 1 is on and the truck is in reverse. I have my extra flashers wired similarly to where they are only on when Aux 1 and Aux 6 are both on. This allows me to leave my "work mode" switch on all day (ignition powered) and control my lights with one switch and back up alarm with... Well the gear shifter and also have the option to turn "work mode" off when I'm backing into my driveway at night or using my strobe lights as spotter/ditch lights up in the mountains at night.
I hope I explained that well enough. Maybe I can draw up a simple wire diagram one day.