That might help some, but as all my playlists are grouped in folders, it won't work for me:There's a script for that:
http://dougscripts.com/itunes/scripts/ss.php?sp=assimilateviewoptions
(Folders, playlists contained in folders, the Master libraries, and "Special" playlists cannot be selected.)
That's perfect for me. Thanks so much.
Be aware that if you select tracks from the main window and then File > New Playlist from Selection, the new playlist will have the same columns as the main window, by default.
That obviously won't work for smart playlists, which the script does handle.
Not if the Smart Playlist is in a folder, as mine are.