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Delete or disable keyframes – Adobe After Effects CS4 User Manual

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USING AFTER EFFECTS CS4

Animation and keyframes

Last updated 12/21/2009

RPF Camera Import

Imports RPF camera data from third-party 3D modeling applications.

Sequence Layers

Opens the Sequence Layers assistant.

Time-Reverse Keyframes

Reverses selected keyframes in time.

More Help topics

Keyframe interpolation

” on page 231

Expression basics

” on page 646

Delete or disable keyframes

To delete any number of keyframes, select them, and then press the Delete key.

To delete one keyframe in the Graph Editor, Ctrl-click (Windows) or Command-click (Mac OS) a keyframe with
the Selection tool.

To delete all keyframes for one layer property, click the stopwatch button

to the left of the name of the layer

property to deactivate it.

When you click the stopwatch button to deactivate it, keyframes for that property are permanently removed and the
value of that property becomes the value at the current time. You cannot restore deleted keyframes by clicking the
stopwatch button again. Deleting all keyframes does not delete or disable expressions.

To temporarily disable keyframes for a property, add an expression that sets the property to a constant value. For
example, you can add this very simple expression to the Opacity property to set it to 100%:

100

.

Click the Enable Expression button to toggle the expression on and off, which toggles the keyframes off and on as a
side effect.

If you accidentally delete keyframes, choose Edit > Undo.

Jeff Almasol provides a script on his

redefinery website

that automatically removes keyframes based on specified

criteria—for example, all keyframes in the work area, all odd-numbered keyframes.

More Help topics

About animation, keyframes, and expressions

” on page 210

The Graph Editor

” on page 211

Keyframes and the Graph Editor (keyboard shortcuts)

” on page 751

Showing properties and groups in the Timeline panel (keyboard shortcuts)

” on page 748

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