Would really make use of a hotkey that pulls something like this up for selected tracks!
Would make sorting go much quicker. If I wanted to tag individual tracks in an album with their own keywords, this would be much faster than having to open tag editor then clicking Tab (2) every time.
And maybe a hotkey for multiple genre splitter a well? Or hotkeys for custom tags they use most?
Just spittballin ideas here, might come in handy to some.