I'm at a crossroad... I currently use an ipad to play L-click, R-track. I want to have a 3rd and 4th track for (3) sick male singer, (4)sick female singer. Being that I potentially need 4 tracks, I can either get an interface for my ipad (any suggestions) or use a macbook and usb out to 4 channels to my X32. In doing this, I would lose the ability to have the macbook next to me, so ideally I would love if I could trigger the macbook from my ipad and not have to look at the macbook. Is this possible and how stable is the session connection? Side Note - the songs get called up via midi, so I really just need to know the song called up and the play button on my ipad to trigger the macbook. Thanks!