Design your own arpeggios feature - click on the notes you want to make an arpeggio pattern with, then turn all the notes into a button which you press and then the pattern starts, also having the option of moving up, down etc with the pattern you’ve created. Would be really amazing if you were able to include this feature. By the way scaler is already a phenomenon!
I would also like a pair of dice or something for randomizing!
That also sounds awesome!