Remap power button ls-4p

I want to have my own presets, my lights are configured in a hoop 5m long. I would like to use the existing button if possible to toggle between presets. My battery pack has a on/off switch so if I could remap the internal switch on the ls-4p to toggle presets, I wouldn't have to use a gpio pin and modify the case. Or is the button part of the power board and not possible?