Hi, i’ve been doing some broadcast work with the engine and have been looking into this. The closest I came to it is making a post process material which makes a side by side key and fill based on one of the many gbuffers available. This means you’d have to do some fiddling in a DVE or avid in my case. I had an idea of creating a double wide game window like 3840x1080 and using the same material to pull out the key and fill.