Add SortAlbum and SortAlbumArtist music metadata for Advanced Rename

The Advanced Rename dialog includes several metadata fields for music files. Would it be possible to expand the list of fields that are offered? In particular, I'd like to see SORTALBUMARTIST and SORTALBUM added. I prefer to keep my music in folders named for the artist, but I use the artist's sort name rather than standard name (e.g., I want the folder to be \Springsteen, Bruce\Album instead of \Bruce Springsteen\Album).