Manual mode allows you to switch between sources in the navigation drawer.
Automatic mode switches to the Bluetooth source when a connected Bluetooth device starts playing audio. You can then switch between sources in the navigation drawer.
Guest mode switches to the Bluetooth source when a connected Bluetooth device starts playing audio. If you change to another source, Bluetooth will disconnect. The Bluetooth source does not appear in the navigation drawer.
Disabled removes the source from the navigation drawer, and does not allow another device to connect to the Player as a Bluetooth source.