We are hoping to create a few videos for our social media using footage from our practice marches but I don’t know how to get the overlay from field control working can anyone provide some help
Here is a post about the VEX TM OBS Source, which is widely used for overlays:
If you don’t want to use OBS, you can create an audience display in TM and turn on the Overlay mode which creates a color key for the background. Then use your video editor of choice to key out that color.