You have several ways to edit the clips that you've arranged on the storyboard/timeline.
You can
split an audio or video clip into smaller, more manageable clips. By splitting a clip, you can, say, insert a video transition or title into the middle.
To split a clip:
1. In the Contents pane or on the story-board/timeline, select the clip that you want to split.
2. Press the spacebar to play the clip; then press the spacebar again to pause at the point at which you want to split the clip.
or
On the Monitor, move the seek bar to the point at which you want to split the clip.
3. Choose Clip > Split (or press Ctrl+L).
Conversely, you
combine an audio or video clip that's divided into small clips. You can combine only contiguous clips. (The second clip's start time immediately follows the first clip's end time.)
To combine a split clip:
1. In the Contents pane or on the story-board/timeline, hold down the Ctrl key; then select two or more contiguous clips that you want to combine.
2. Choose Clip > Combine (or press Ctrl+M).
trim a clip to hide its unwanted parts. By trimming an audio or video clip, you edit its starting and ending points, therefore editing its length. Trimmed content isn't removed but merely hidden from the movie's audience.
To trim a clip:
1. Choose View > Timeline.
2. Select the clip that you want to trim.
3. Drag the trim handles to set the start and end trim points (Figure 11.11 ).
Tips
To clear trim points, select the trimmed clip on the timeline; then choose Clip > Clear Trim Points.