Demo light DMX-profile has odd intensity control.

I just received a light to demo, and am building a profile for it.
The channel layout (only 1 dmx profile available…)
1. intensity
2. CCT range
3. Red
4. Green
5. Blue

The intensity ONLY controls CCT values; so if a CCT+color is desired (eg. 4000K+some green for crappy fluorescent), and the intensity needs to change, the green won’t dim with the intensity adjustment.

I’ve tried a virtual intensity, but that will no longer control a physical channel (even if I add an intensity channel to the profile), so CCT control is lost…

Any advice?