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 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:

Select the layers from which to remove a section.
Select the Lock switch for layers that you do not want affected by the extraction. Press F2 to deselect all layers.

Note: If no layers are selected, the following step removes the section from all unlocked layers.

Do one of the following:

To remove the section and leave a gap of the same duration as the removed section, choose Edit > Lift Work Area.
To remove the section, choose Edit > Extract Work Area. The gap is closed by ripple deletion.

AfterEffects

Remove part of a layer’s duration

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