For macOS 10.10 and 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.
iCloud Music Library/Apple Music users should be aware of a potential bug.
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.
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