I'm not sure if this would work as I think it would, but figured i'd ask anyway. I'm wondering if it would be possible to import a video into Virb Edit and add the overlays as normal, but then export just the overlays and not the video (or export them as two separate videos). The overlay video would use a solid colour (I think it's referred to as a Chroma Key?) such as green for where the video would normally reside. The benefit of this is that the overlay video and actual video could then be imported into a more advanced editing tool and edited separately (with the chroma key used to set the transparency of the overlay video). Here's a few examples of why I think this would be useful:
1) If the video isn't level it could be rotated without rotating the overlays
2) If the video is shaky it could be adjusted without the overlays moving
3) If some parts of the video require processing (such as exposure) that could be done without the colour of the overlays changing
I'm interested to hear what other people think of this.
Thanks,
Brett