Select all the clips in the timeline/storyboard by clicking on one of the
clip and then pressing Ctrl-A. Now right click on the desired effect such as
Fade and select "Add to Storyboard/Timeline".
HELP! I tried this but as soon as I right click on a video effect, the
pictures become unselected and when I select "add to storyboard" nothing
happens. I'm making a slideshow and it takes forever to add the effects. Is
there anything else I should try? Thanks.