4-Bar Devices in Photon?

I think you have to set each PAR up as an own device. I don‘t know which channels are used for which case. A chase-effect (I think that is what you want to do) is already requested, but not implemented yet.
Another solution: you can add each PAR with dolour presets to the custom controls, but then, the colour picker has no sense.
So, split the device up and add each PAR as one group.

The first answer of this topic is maybe also helpful: