Set last Skipped Date of selected tracks to today or today minus your number of days.
Better date input is available using New Last Played Date which has a Last Skipped option.
You could also enter a negative number to add days, since subtracting a negative number results in a positive. Let's hear it for Math!
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downloaded 16s ago
Exports and then re-imports selected tracks' artwork
downloaded 44s ago
View/Edit tags of selected track(s) in single window
downloaded 1m 34s ago
Export selected playlists as individual XML or M3U files
downloaded 3m 29s ago
Reset history properties of selected tracks to default values
downloaded 30m 21s ago
Use tag data to formulate new file name for selected tracks' files
downloaded 54m 56s ago
Sort purchased tracks into discrete playlists by name or Apple ID