Adobe After Effects CS4 - Manual (Page 226)

220 USING AFTER EFFECTS CS4
Animation and keyframes
Last updated 12/21/2009
More Help topics
“ Layer properties in the Timeline panel ” on page 159
“ About animation, keyframes, and expressions ” on page 210
Move keyframes in time
You can move keyframes in time, either individually or as a group.
Jeff Almasol provides a versatile script on his redefinery website that creates a panel with controls for moving various
combinations of items in time—layer In point, layer Out point, layer source frames, keyframes, and markers.
More Help topics
“ Select keyframes ” on page 215
“ About animation, keyframes, and expressions ” on page 210
“ Keyframes and the Graph Editor (keyboard shortcuts) ” on page 751
“ Showing properties and groups in the Timeline panel (keyboard shortcuts) ” on page 748
“ The Graph Editor ” on page 211
Move keyframes to another time
With multiple keyframes selected, you can copy or delete them simultaneously or move the keyframes together
without changing their positions relative to each other.
1 Select one or more keyframes.
2 Drag any of the selected keyframe icons to the desired time. If you selected multiple keyframes, then all of the
selected keyframes maintain their relative distance from the keyframe that you drag.
Move a keyframe to a specific time
1 Move the current-time indicator to the desired time.
2 Do one of the following:
• In layer bar mode, hold down Shift after you begin to drag a keyframe icon to the current-time indicator.
• In Graph Editor mode, drag a keyframe to the current-time indicator.
When you drag over the current-time indicator, the keyframe snaps to the current-time indicator.
Expand or contract a group of keyframes in layer bar mode
1 Select at least three keyframes.
2 Hold down Alt (Windows) or Option (Mac OS) and drag the first or last selected keyframe to the desired time.
Move a layer duration bar but not its keyframes
1 Place a composition marker at the time at which the first keyframe appears. (See “ Composition markers ” on
page 620.)
2 In the layer outline, click the name of one or more layer properties containing the keyframes you want to keep at
the same times.
3 Choose Edit > Cut.