So basically Cider can't add smart playlists. I personally use smart playlists to make it so once I have listened to a song, it doesn't play for a set period of time, and the same thing for when I skip a song (it removes the song from the playlist for whatever amount of time you set). Would it be possible to create software or a plugin that makes it so when I listen to a song on a playlist or skip it, it won't play again for a set period of time?