The button would create a Youtube playlist with all Youtube links available in the selected Raindrop folder (optionally with recursion). The playlists could be created in the folllowing format: https://www.youtube.com/watch_videos?video_ids=ID1,ID2,ID3,ID4..
I find the features of Youtube playlists really disappointing. Maybe Raindrop could serve as a good alternative, with the following benefits:
  • Playlists will be stored on Raindrop's folders (with subfolders support);
  • User doesn't lose references (artist name and song name) in Youtube dead links;
  • (maybe) Bulk insert of Youtube links when bookmarking a Youtube playlist;
  • (maybe) Detecting Youtube dead links on Raindrop's dead links page.