ok i was mixing terms then. I mean on, for example, a generic LED fixture with chan for R, G, and B... one of the buttons compu generates initially is the color pallete where you see all the colors, and can click/drag to get the color you want.
I suppose this is the RGB color mixing you speak of. the generated title on the button is "RGBmix"
I have experimented with seemingly all combinations of the compression buttons at the top of the page, but I will try some more to see if I can make it show back up.
Is there a way to simply regenerate a button like this on my own?