This script re-creates a single selected playlist so its View Options (visible columns) are the same as the main Music library (taking advantage of the fact that new playlists acquire the Music library's View Options).
Works only with regular playlists and Smart playlists.
Assign it a keyboard shortcut for ease of use.
Set choice of various number tags of selected tracks incrementally
Batch-reset the Start and Stop Time of selected tracks to their entire duration
Select iPod tracks in iTunes and add them to iTunes
Apply selected CD's CD Text to its disc and track tags
Delete characters from the beginning or ending of selected tracks' name, artist, album, comments, composer, or show tags
Applet assists with swapping, copying, appending data between track tags