Apple Final Cut Pro X (10.1.2) - Manual (Page 240)

Chapter 9 Add transitions, titles, effects, and generators 240
Do one of the following:
m Add a clip to the Timeline as a connected clip and then add the effect to that clip.
This places the clip above the primary storyline clip, which automatically becomes the
effect’s background.
A clip that’s composited
over the primary storyline
The clip in the primary
storyline that is the
background
m If the clip is already in the primary storyline, drag it above the primary storyline, positioning it
over the clip you want to be the background.
The result is a composited image.
The Transform and Trim effects
were used to composite this
image over the background.
For more information about working with connected clips, see Add storylines on page 277. For
more information about compositing clips, see Compositing overview on page 372.
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