2 iPads and mixer sync

I am using 2 iPads . In the setting is says they are linked in Multi. I am trying to get it to have a long mixing board. If I have track 1-8 on the first iPad and 9-16 on the 2nd. iPad. I want to be able to move the tracks so they are in sync. right now I have to move each iPad tracks manually to get say 9-16 and 17-24 visible. still awesome but would be so cool just like a hardware control surface like Behringer x-touch etc. Is this possible to set up. if so I will buy 4 iPads to make a huge mixing console