Sony PCG-XG28 Primary User Manual page 96

After adding clip(s) to the Clip tray, you can create a short movie using
the Shaker feature. Shaker randomly select clips from the Clip tray to
create a 30-second scene.
Click the Shake tab.
Select a mood by clicking a face in the Shaker tray.
Click
and saved to the Product tray.
To preview, switch the Work Panel to Product tray mode and press
play.
. A thirty second scene is automatically generated