On Nuage, what you see on screen is similar to cubendo but that’s exclusively designed for the controller and indeed it has no faders and meters on bottom. If you google nuage pictures you can find them.
And on Cubendo, it sure isn’t possible to hide faders that I also feel limited, I wish we could hide them, but there are certain core things in cubendo’s UI that cannot be hidden, e.g. EQ display on the channel edit window, [M][S][R][W][L] on the mixer panel, and also this fader section. I think this limitation comes from deep in the structure of coding these UI.