I did my first two live streams using 3 cameras, two laptops, fibre optic HDMI lead and the ATEM Mini Pro and was very pleased with both results. One of the things that would have made it a bit smoother was if there would be a way to let each cameraman know they were live. Is there any form of API that can output this I am sure I could write a python script on a raspberry PI to light a small ultrabright LED which van be velcroed on the top of each camera.