Suggested Feature: 5-Star-Ratings "tag"

I always try to give tracks an "out-of-5" star rating.

The stars are shown on other programms I use Traktor and Itunes. (Changes made on either of these softwares show up in the other so I guess it's a standard tag.

Can editing this "tag" be added into a future release of MP3Tag please?

Is it already possible in the version I have? If so, how?

see the help on the field POPULARIMETER and its variations: