This would save me so much time! Just make it so clicking on the playlist icon turns it into a check-box, and then you can select multiple playlists. A “Add” button could float-in at the bottom-right of the screen (similar to the pen icon in this forum).
voted! Related to this topic I will also talk about knowing before adding a song to a playlist if that song already exists there. As far as i know, for now, you have to add and wait to see if it’s already or it has been added. I know there is a post asking for something like a check in playlists with the song you want to add, but I’m lost with too many posts here when I log in.
The first fixed post should have a summary of all active posts in this web-forum, with links to them. It makes easier to find a topic, know if it already exists or not (avoiding duplicated posts) and stay up to date.
I just thought of the mechanism to do this in iOS that’s fairly standard. Long-press on a single playlists will switch the Selection-mode, which will select the long-presses playlist, allow any others to be selected with a short-press, and a Done button has appeared top-right for when you’re finished.