I wonder if you can do some improvements in the Sheet Display. Currently, you can find a lot midi only for piano with two tracks (1 for right hand and other for the left hand). I think there should be an option to say this track is from left hand and all the notes should be shown on the treble clef. Now if I´m playing a track for the left hand and this tracks has for example a Middle-C this will be shown in the other clef.
The same for tracks for the right hand.