Adobe AFTER EFFECTS CS3 PROFESSIONAL User Manual page 203

Change multiple keyframe values at once
You can change the values of multiple keyframes on multiple layers at one time; however, all keyframes you select
must belong to the same layer property. The way the values change depends on the method you use to make the
change:
• If you change a value numerically, all selected keyframes use the new value exactly. In other words, you make an
absolute change. For example, if you select several Position keyframes on a motion path and numerically specify
a Position value for one of them, all selected keyframes change to the same position value.
• If you change a value by dragging the underlined value, all selected keyframes change by the same amount. In
other words, you make a relative change. For example, if you select several Position keyframes on a motion path
and drag the underlined value for one of them, all selected keyframe values change by the same amount.
• If you change a value graphically in the Composition or Layer panel, all selected keyframes change using the
difference between the old and new values, not the values themselves. In other words, you make a relative change.
For example, if you select several Position keyframes on a motion path and then drag one of them 10 pixels to the
left, they all move 10 pixels to the left of their original positions.
You can also change the value of several layers at once in layer bar mode by parenting them.
1 Select the keyframes you want to change. All keyframes you select must be on the same property.
Change the value of any selected keyframe by one of the methods above. All other selected keyframes change
2
accordingly.
See also
"Work with parent and child layers" on page 161
"About animation, keyframes, and expressions" on page 185
"Shortcuts for keyframes" on page 643
"Shortcuts for showing properties in the Timeline panel" on page 640
Edit multiple keyframes in the Graph Editor
You can edit and move multiple keyframes simultaneously using the Graph Editor. When you select multiple
keyframes with the Show Transform Box button toggled, a free-transform bounding box surrounds the selected
keyframes, and an anchor point appears in the center of the bounding box to mark the center point for the transfor-
mation. You can move the selected keyframes in time or value by dragging the bounding box or its handles. You can
also change the position of the anchor point.
Adjusting a free-transform bounding box in a value graph moves the selected keyframes in time and value. Adjusting
a free-transform bounding box in a speed graph moves the selected keyframes in time only.
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