I don't think this is possible but if it is, I'd like to know. When looking at a piano roll in the software, the grid lines make it difficult to know where you are in keyboard, no clear division for octaves from C, middle C etc. So if I need to correct some of my notes after playing it's a bit more arduous then I'd like. Also, would be great to be able to trigger then sound when moving it onto another note or by clicking on the piano key.
Thanks,
Ben