I use vMix in hockey. I have 4 cams - two goal cam (behind gates) and 2 cam on the LED-cube on center. Goal cams fixed, "cube" cams - PTZ, but look to their side of the field. And i have notebook with special software, which is used by the arbitrators and displays the graphic interface of the scoreboard. I recieve this graphics interface by NDI and send it to LED-Cube. I want to make it so that the clock from this graphic display can be put on replays. All games timing - only from this notebook !!! And replays should be too.
As variant - i can use 3 cams (Pro versions) and this NDI-input in replays interface and use multiview in additional inputs (main=color, 1=vmixirA=cam1,2=vmixirB=NDIclock/1=vmixirA=cam2,2=vmixirB=NDIclock ant etc), but in this case - i lost 1 cam :(


How is it possible to solve this problem? May be make request to create the possibility of imposing additional input on replays ?

Yes, it is good method. But - i am not use virtual input - i overlay scoreboard as multiview over cam's inputs and simple send this inputs to output1-2-3-4.