OS X 10.8 or later. Set Last Played/Last Skipped date of selected tracks to a new date, with option to increase or decrease Plays/Skips, or set to no date and no Plays/Skips.
Also see Add or Subtract Play Count.
Like so. The Last Played date of the selected tracks will be set to June 10, 2014 at 9:45AM and the Plays will be decreased by 3. The latter is an option that can be toggled on and off with the checkbox.
Restore each selected track's artwork from an image file stored in its Album folder
Exports and then re-imports selected tracks' artwork
Convert selected tracks and export the converted files to a new folder
Export selected playlists as individual XML or M3U files
Displays files in iTunes Media folder not in iTunes track library
Edit a selection of iTunes tracks' tags in single window