I know you can silence calls by hitting the vol down button when the phone is ringing. Is there a shortcut to silence notifications too? If I am standing with vendors and my notifications go off I would like a way to quickly stop it. I use a long tone so that I don't miss the event but the only way I can seem to stop it is to turn on the phone, slide to unlock, and then clear the notifications from the bar at top. I was hoping to silence them with a key press instead. Maybe the power button?