I understand the challenge.
Think it could be great to have a button for Amber, UV and white and with a knob where I can apply how much I need of each color (Amber, UV and White).
Normally I will use the RGB colors when programming.
If I need UV, Amber or white I can apply it as a switch and if there is a knob where I can define how much I need it can be great.
Please let me know if you need more info.
Kind regards.