I am making a composition in After Effects with an illustrator file which has 10 layers. All 10 layers are animated either through keyframe or effects.

The composition was initially for 2 seconds. Now I want to change the composition timing either by increasing or decreasing to see how the overall comp looks like. Now whenever I do that, I need to manually increase or decrease the layers one by one to fill the extended or decreased new timeline.

Is there a clever way to do all of them at once ?

Thank you in advance.

  • Hi. Welcome to GDSE. Video Editing questions are off-topic here. For future reference, these should be posted on Video Production Stack Exchange.
    – Billy Kerr
    Aug 13, 2020 at 15:13

1 Answer 1


Sorry I realised just after posting it.

Select all layers-> Control+Shift-> extend to fit the timeline all at once.

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