I would also like to use “true” split screen. As my bands sound engineer and singing bassist, it would be excellent to have full control of the mixer as well as my apps for lyrics on the other side of the screen. I realise that QuPad uses a lot of energy talking to the mixer, but a lyric app wouldn’t slow that down much would it?
The Mackie MyFader app does the full (half and half) split screen just fine… But I don’t like using that desk!