KVR Audio

Hi, I am wondering if there's a way to control the master volume with a hotkey (Hosting AU) or some other way so that I don't have to open the interface to it down? Or maybe I can map volume to some knob on my pioneer DDJSX controller?

Thank you

EDIT: LOL, figured it out guys. MacOS volume works. Im so used to outputting to my external DAC and MacOS not giving me volume control.