I am looking for a new mixer at the moment and was considering the Flow 8. Playing around with the demo mode on the app and it looks like it can take up to 6 tracks via USB - assigned to channels 5&6, 7&8, 9&10 by the looks of things. Can you confirm if this is correct please? If so, it would be ideal for my use case (1 vox, 1 guitar into physical inputs, and then stereo backing track and click track via multi out of Stagetraxx)