I'd prefer not to edit the clip and then import it back into the phone, then export back out again. I think the blue background with no transparency would be a fantastic solution. The blue could be keyed out, and the transparency to the gauges could then be applied in the video editor. I understand ...

Harry, your app is amazing, thank you so much for building and supporting it! I would love to be able to export just the overlay data (gauges and track map), with an alpha channel or blue screen that could be removed later in a video editing program like Final Cut Pro. I know there are some software...