The DAW software should have the ability to change the system clock of the console via USB (or AVB). This would be huge. My previous Yamaha board that I interfaced with via Nuendo could change it on the fly. This is important to me as I'm constantly switching back and forth between 44.1 and 48KHz because of the kind of projects I work on. Slaving to just one sample rate doesn't work. I know you can go to the UC software and change it there, but it's yet another thing to remember on a busy day. I've used numerous hardware interfaces with Nuendo/Cubase and most of them have this ability to clock from the master computer/system clock.