At the moment I’m using a tablet for my song charts and Cantabile separately for my keys. I know there are a few workarounds to get Cantabile to tell the tablet to open the chart files or go to the appropriate pages, but I can’t help feeling that it would be a lot simpler if you could just pop the notes out into a floating window. That would make it very easy to set up multi monitor systems - just drag the notes window over to the second monitor. There are plenty of apps to turn tablets into USB monitors, so that would be an option as well. No need to run scripts or use other programs at all.