Color pallets and level control from a sub?

I have Chauvet Colorado Batten 72 Tours in Block 2 (MC) 3 cell mode.
If I create a sub for these fixtures with intensity only on the master channel {1.0@100; Record sub 1} I can correctly control intensity but if I want to select them with the Select button or 'group sub 1' I can not apply color pallets because the master does not have color info.
If I create the sub using 1@full; record sub 2 I get logarithmic level control (because both master and cells are controlled) but I can select color pallets.

If I create the sub for Cells Only the master isn't affected and I need to also have a sub for the master (or set a home value for it)

How do I get correct level control and color selection? I'm sure I am overlooking something very simple here.