Would be such a strong feature. Unlike what previous answers stated, this can't be done. There is no way to make a refined collection search without touching the mousepad. I'm not talking about the search field btw, I know this can be mapped.
You could easily navigate through your collection finding the tracks you need with just a few buttons. I.e. you could map the label and key searches to easily find similar tracks.
Shouldn’t be that hard to implement, I guess?
