(Alt + up/down arrows)
Though it doesn’t work unless you have the focus set to the little
db read out at the bottom of the fader. (Directly under the fader)
So yes, it does have a key command but you have to click first to set the focus.
Or try and tab your way around to it.
Kind of defeats the purpose of having a short cut in the first place.
If the channel is selected it should just work.