Can I change the current playlist while on the air?

Yes. The order of tracks can be changed by simply dragging and dropping while the playlist is on the air. New tracks can be added to a playlist, or tracks can be deleted in a similar manner. To keep the changed order of the playlist, save it. Otherwise, the playlist will revert to its original order when it starts the next time.

Once populated with new material, another playlist can be started at any time by pressing the play button on the interface. It can be set to take over from the current playlist when the current track stops, or the current playlist can be interrupted, and the new playlist put on air immediately.