Moving clips in sync with compound clips

Let's say you've created a video wall much like we did in the Creating a video wall recipe. Now, we want to add some animation to it, to give it a bit more oomph. What if you were asked to create an animation where this four-clip grid started off infinitesimally small, then grew in size (and in sync) from the left corner to eventually fill the frame? Oh, and we want to make it spin once for good measure! Your eyes might start rolling into the back of your head trying to figure out how you're going to keyframe all four clips in synchronous motion. We wouldn't blame you! But once again, we'll use the fine art of compound clips to make this task just as easy as keyframing one single clip.

Getting ready

This trick involving compound clips can be used in a variety of circumstances, but to illustrate it in this exercise, we've simply stacked four clips on top of one another and created a grid by resizing and repositioning the clips. We did this task in...