Adobe AFTER EFFECTS CS3 PROFESSIONAL User Manual page 152
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"Timeline panel overview" on page 113
"Work with the Layer panel" on page 138
"Shortcuts for working with layers" on page 638
Trim or extend layers in the Timeline panel
Dragging the Out point of a layer duration bar.
Select one or more layers in the Timeline panel.
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Do one of the following:
• Drag either end of a layer duration bar.
• Move the current-time indicator to the time at which you want to set the In point or Out point. To set the In point
to the current time, press Alt+[ (Windows) or Option+[ (Mac OS). To set the Out point to the current time, press
Alt+] (Windows) or Option+] (Mac OS).
Trim or extend a layer in the Layer panel
• Open the layer in the Layer panel and drag either end of the layer duration bar.
• Move the current-time indicator in the Layer panel to the time at which you want the footage to begin or end, and
then click the In
or Out
Slip-edit a layer
After you've trimmed a layer based on moving footage, a pale slip-edit bar represents the frames of the footage item
that you are excluding from the composition. This pale rectangle does not appear for a trimmed layer based on a still
footage item. You can choose which frames are played within a trimmed duration by dragging the slip-edit bar. The
layer's In and Out points are not affected.
Moving only a layer's In or Out point doesn't move keyframes. Dragging the layer duration bar moves all keyframes.
Dragging the slip edit bar moves selected keyframes, but does not move unselected keyframes.
When performing a slip edit, you probably want to move some keyframes with the source footage—such as mask
keyframes. Other keyframes should stay where they are in time. Press Shift+F2 to deselect keyframes and leave the
layer selected.
• Drag the slip-edit bar to the left or right.
Remove part of a layer's duration
In the Timeline panel, set the work area to include only the portion of the layers' duration to remove: Move the
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current-time indicator to the time that the work area is to begin, and press B. Move the current-time indicator to the
time at which the work area is to end, and press N.
Do one of the following:
2
• Select the layers from which to remove a section.
button to set the In or Out point to the current time.
AFTER EFFECTS CS3
146
User Guide
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