For custom user fields: Possible to recreate Genre drop-down preset list?

[ohrenkino]

See this thread:

Custom Tag Drop Down Lists

One of my custom tags is "subgenre" for my classical collection. I'd like to have things like "Piano - Solo" or "Concerto - Flute", but I don't want to have to memorize the exact formatting of every new subgenre I create. Is there any way to define preset values (that would appear as a drop-down list) for custom tag fields within MP3Tag? For example, the "Genre" tag has drop-down choices such as Punk or Ambient. Thanks, Chad