Hello, before your recent UI update, we could UPLOAD a new track to an existing playlist directly from the PLAYLIST's editing screen (which was the "old sound cloud's UI"). I'm not a nostalgic but that feature was really useful since in ONE step I could Upload (or add) multiple new tracks to a playlist from the playlist's editing screen, I can't seem to do that anymore, when you go to Playlists > Edit (Pencil) > Tracks, you can DELETE, REORDER but not ADD or UPLOAD.