Option to filter songs

[lightmaster]

I'd like to have an option to filter out all songs with synced lyrics (so the list only shows songs with just plain text and with no lyrics), and also to filter out songs with synced and plain text lyrics.

Right now, I'll have it download all the lyrics it can automatically find, but then I go through and manually check all the ones with plain text and no lyrics because the automate won't necessarily download the synced lyrics if the the album on my computer is listed as uppercase and the album on the server is in title case, or if the album on my computer has Deluxe/Special Edition and in on the server only the normal edition is listed. Would be a whole lot faster to run through manually if I could filter out the synced lyrics that are already downloaded.