I’ve been trying to figure this out for weeks with no success. I’ve scoured this forum, not to mention google, looking for a solution, but no luck.
I have hundreds of tracks in TIDAL playlists, and hundreds of other tracks in Plex playlists (these songs are not available on TIDAL). All I want to do is transfer the songs in the TIDAL playlists to the Plex playlists.
For example, I’ll have a “Favorite Scores” playlist on TIDAL, but there are several of my favorite scores not available on TIDAL, so I have a “Favorite Scores” playlist on Plex as well. ALL I WANT TO DO IS COMBINE THE TWO IN PLEX!!! 
The only way I’ve found to do it is to open the TIDAL portal on the Plex web app, and click the menu button for each song, one at a time, moving them individually. There is no way to move multiple items, and therein lies my problem. It would take forever and half, not to mention a serious case of carpal tunnel, to move every. single. song. I can select multiple items, but then the only option available is to remove them from the playlist. The mobile app allows you to select multiple tracks to move to other playlists, but only within TIDAL, NOT from TIDAL to Plex, as I need.
Considering the hype Plex put out about how well TIDAL was supposed to integrate with Plex in EXACTLY THIS WAY, the fact that something as simple as moving multiple songs between TIDAL and Plex playlists is not available is extremely frustrating… Such a simple feature, and so desperately needed. Does anyone happen to have a solution that I haven’t been able to find? If not it may be time to abandon this venture… Thanks for your help.
