I bought a Tangent Element Kb (Knobs) panel to start experimenting with custom control panel layouts in Assimilate Scratch. Scratch offers a lot of customizability with third-party panels, and none of the stock panel layouts I have found so far emphasize the controls I tend to use the most.
My initial goal is to see if I can map the controls for master + red, green, and blue for lift, gamma, and gain on Set A, and then a layout for qualifiers on Set B. If that works well, I might grab another Kb and possibly a Bt (button) or Mf (multi-function) and break out the layout ever further.
Later on I'll make video on how I created the panel mappings in Scratch, so keep an eye out for it if you're interested.
For more info on the Tangent Element:
and Assimilate Scratch:
Color Grading in general: