Well, it looks like there are a few people working on some control surface integration protocols.
I found a few. There is the Klinke, one called Moss, and finally one called CSI.
The most powerful one is the CSI as it lets you integrate multiple controllers and change almost everything on them.
That's the one I installed and just selected the QCON controller and under that I just selected the MCUXT.mst (for surface) and MCUXT for Zone Folder. Which I supposed it's similar to the "Mackie Control Extender" settings that REAPER comes with, but this one allows for the SOLO button to stay lit.
It's more complicated that I have time to get into now, but I don't need it to be super customizable just yet. So I'm just installing and selecting the default.
You can read about it here:
https://forum.cockos.com/showthread.php?t=183143