The Playlist layout is a special list layout available only when viewing video or music playlists. In Music playlists the layout displays the artist and track name as well as the duration or length of the track.
Use the arrow keys to navigation to the up/down buttons and move an item up or down in the playlist. Use the 'X' button to remove an item in the playlist.
Do not confuse the Playlist layout with the Playlist view. Playlist views also support the Icons and Big Icons layouts.
To learn how to add items to a playlist, see Music Playlists or Video Playlists