You might receive notification messages while you’re using a Surface Hub. If you miss one, you can find it later in action center. To get to action center, select Notifications at the bottom of the screen.
There are a few things you can do with quick actions:
Do not disturb: Temporarily turn off notifications and block other people from projecting.
Volume: Turn the speaker volume up or down.
Restart: Restart the Surface Hub.
Ease of Access: Turn Narrator, Magnifier, and high contrast on or off.