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First some background. You can ONLY schedule CasaTunes playlists on CasaTunes Player sources.
1. To create a CasaTunes Playlist, you select the songs that you want in the playlist, then return to the Now Playing screen and select to view the contents of the Queue. You will notice a “Tasks” button on the toolbar, select this and select to save your queue as a Playlist. It will then prompt you to name the playlist.
2. Now, when you create a wakeup event, you must select the CasaTunes Player that you want to use to play your CasaTunes Playlist. Once you have selected your CasaTunes Player source you will be able to select the playlist you want to wake up from the list of available CasaTunes Playlists you created in step 1.
If you need further clarification, please let us know.