I hope that the knob will be used in all cases where "analog" values makes sense (besides volume). I'm thinking of EQ settings, loudness settings, err any sort of settings... shuttle/jog... The way my Alpine works is when the button is pushed in, it will select the next function in the list. Keep tapping the button it'll keep switching to another function.. (brightness, etc). There are also sub-menus you can get into by holding down the button rather than tapping it.

Calvin