Has anyone made anything like this Mosaic Photo/Video Gallery?

https://elements.envato.com/photo-gallery-promo-V3PLZS5

Is there a way to do this without moving every single individual video "tile"? Is there a way to pan around a large canvas for example?

I've run into a limitation with parent/children that if using track motion, I put a child in a parent and that child is outside of the video project bounds, the child video is cropped... so that I when I track motion the parent, and the child comes into view, the part of the video that was outside of the project frame is essentially missing/cut off. I can post a picture if it's easier to explain. I'm pretty sure it's a limitation of the software.

So I can only put children in parents within the video frame space, and then move that parent to a location outside the video frame space.

Anyways - core question is, what's the easiest way to build something like the template example above? Does any template like this exist for Movie Studio 17 Platinum? Seems like none of the Vegasaur stuff works for MSP.

Thanks!