What I wouldn't give to have a feature like this on the vPlus. I have no idea if a quad-motor setup could support such a thing. But I do know this would sure help to keep the stress level down.

This function means that when the aircraft is in attitude or GPS attitude mode, and one of the motors stops, the aircraft will retain good attitude and rotate around the frame arm with the stopped motor. In this condition, the aircraft is still under control and returns home safely and highly reducing the risk of a crash.