It is. But, I need to be able to do it from the web app, I don't want to have to go through hundreds of albums on my device and do it. I want to do put $(".pin_button").click() in my Chrome console and be done with it.
maybe you could just make one playlist, put all music you have in there, and pin that list on the device? Then you should have all your music and playlists available locally.
