Question about creating new fixture

[janosvitok]

For historic reasons, both primary colors (R/G/B, C/M/Y, A,W,UV, etc.) and dimmer channels share the same group.
So QLC+ distinguishes by looking at the color: when it's "No color" it's a dimmer, otherwise it's a color channel.
Dimmers have special/different behavior to colors, e.g. RGB matrix will manipulate them in order to the colors be seen.
When you set your dimmer channel to amber/white, you in fact disabled this special behavior.

[3rdPlanetRob]

Ok, thanks, i maybe i should have gotten that much, trying to learn too many things at once..