Hmmm I don’t know if anyone has suggested this but in the when you double click on a midi piece the edit window comes up with all the notes (example lets say a drum kit). When I place my cursor over the piano keys on the left, I have to press the button each tiime I go up and down the keys trying to find that special drum sound. What if I can have the option to press any key, lets say starting with C3. If I don’t lift my finger I can go up and down the keys and it will play each sound on each key. I don’t know if it’s an easier way but when I tried it earlier I had to keep pressing the mouse button key on each piano note in order to hear what drum sound is on each key.