Build a playlist.

So the idea is simple. I upload one track into playlist and after i select it studio should open sub window with all harmonic tracks for that track from my library. I add second track and select it then again studio shows all harmonic tracks with that track and so on. Cause now i can upload 20 tracks but i will need to scroll playlist look for tracks then drag and drop its to much unnecessary actions to do. Playlist building feature would make process much more cleaner.