I have a NAD M17 v2i processor, it's remote has an overall volume Control, of course, and additionally has three separate targeted volume controls for tweaking the surrounds, Center and subwoofer channels.
So if the sub sound tends to be too much or too little for a specific movie I can tweak it, same thing for the surrounds and Center as well.
It's a wonderful feature.
I also create individual settings on the remote where I can listen to movies strictly in two channel with surrounds and subs while excluding the center channel because sometimes two channel just sounds better for home theater sound. I can also set it to include the center channel on the fly.