Just managed to have D850 Z8 Z9 via usb port and OTG adapter controlled in qdslrdashboard - that´s a huge step forward. What I´m missing is a way to capture pic and more important start / stop video recording on all cameras simultaneously - and have an overview that all are recording in deed / or a split screen with 3 or 4 live view windows?
Is there any way do do it? All other solutions reviewd may offer sync capture of pic, but non can start video recording simultaneously on multiple cameras.