Sony PCG-XG28 Primary User Manual page 97

You can edit your movie by adding effects and text, adjusting the color
and contrast, and modifying the length of clips.
Working Panel
Adding effects to a scene or a clip:
Double-click the clip or scene to move it to the Working Panel.
Select the Effects tab from the Editing tray.
Drag and drop the Effect you want to add from the Effects tray to the
Effects palette on the Working Panel.
See help for instructions on adjusting effect duration and replaying
clips/scenes.