About Xpress Pro Keyframes

Whenever you want to change an effect over time—dissolving from one image to another, flying an image across the screen, zooming into a still, and so on—you need to use keyframes (Figure 9.47).

Figure 9.47. Here, a Push transition uses two keyframes. At the first keyframe, shot A is full screen. At the second keyframe, shot B is full screen.