@Dennis It was one 4K stream multicast out and everyone received it then cropped to their little square in OBS. We wrote a Python script that went down the line and modified each Deck’s OBS scene config to crop to the appropriate square in the template (and then crop in an additional pixel or two to reduce sub pixel bleed at the edges where you might see another screens image intrude a little). Meant each Deck was less than quarter res, but it was fine for the video where most are backgrounded.