Is there an app or setting that will enable me to change notifications based on what I want to hear at any given time? For instance, in the Blackberry world, I could set up different profiles. When I'm in my office, I don't need to hear a notification every time I get an email. I'm sitting in front of my computer and see it. At night, I don't want to hear any notifications, just the phone if it rings. I don't want to go into everything and change it every time I need hear things or not hear things.