I have the ytube_music__player installed and it’s working just great, just not sure where this is located to be able to add additional play lists?
playlist
media_player.play_media plays a playlist from YouTube.
You can get the playlist Id from the Youtube Music website.
Open a playlist from the library and copy the id from the link e.g. https://music.youtube.com/playlist?list=PL6H6TfFpYvpersxxxxxxxxxaPueTqieF