Saw a presentation recently in which a slide started out with 4 similar and equal sized graphics (4 similar technical plots) arranged in a 2 X 2 array which filled most of the area of the initial slide. In subsequent slides, each of the individual plots zoomed upward, one at a time, expanding in size and moving to the center of the screen so as to cover most of the area of the initial slide, with a frame around the zoomed plot, and the smaller originals mostly hidden behind it -- and then, after some discussion of that image, collapsing back down to its initial position, and the next individual plot zooming up. Is there a name for this transition? Can the latest version of Keynote do it? -- or is a special-purpose Keynote plug-in purchasable?