Answers.Body: <p>You can nest this two clips in new composition, and change time starching on it.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-12-22T06:37:12.940Z
Answers.Text: I know, but it's not smart since there are some After Effects transitions.
  I mean, if I stretch the layers, the transition just goes slower.
  But in your case it will be just drop in framerate.
Answers.UserDisplayName: Ant
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-12-21T23:33:42.150Z
Answers.LastActivityDate: 2017-12-21T23:33:42.150Z
Answers.UserDisplayName: Shultc
Answers.Body: <p>I don't know if it works, but you may add a marker on each layer when the transition without stretching starts pressing this key: * </p>
  
  <p>Then, I think the markers should be paired with the original frames and then you just have to match them in the timeline again.</p>
  
  <p>Sorry if this doesn't work or there's a better way, it's just an idea.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2018-10-23T14:02:15.157Z
Answers.LastActivityDate: 2018-10-23T14:02:15.157Z
Answers.UserDisplayName: Diego Mathemagician
Body: <p>So when I stretch the two chosen layers, they do stretch together, but the collision point shifts so I need to correct it manually.</p>
  
  <p>How can I simultaneously change the length of the layers without messing the scene?</p>
  
  <p>I've tried to show the things in this picture. Thanks!</p>
  
  <p><a href="https://i.sstatic.net/Y5YpH.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/Y5YpH.png" alt="enter image description here"></a></p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2017-12-21T10:19:39.723Z
Comments.Text: It works the way it is supposed to. You just need to realign the layers afterwards.
Comments.UserDisplayName: Dr Mayhem
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2017-12-21T11:06:26.337Z
Comments.Text: Well, I know. I'm just hoping there is another way to adjust the length of the composition.
Comments.UserDisplayName: Ant
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2017-12-21T11:11:17.523Z
Comments.Text: I'm having a play and a look at documentation to see if there is another way...
Comments.UserDisplayName: Dr Mayhem
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2018-04-21T04:25:31.947Z
Comments.Text: Seems like a job for a script.
Comments.UserDisplayName: stib
Tags: <after-effects>
Title: Proper time stretch in After Effects for multiple layers
UserDisplayName: Ant
ThreadText: # Proper time stretch in After Effects for multiple layers
  
  (Asked by: username_0 on 2017-12-21)
  
  So when I stretch the two chosen layers, they do stretch together, but the collision point shifts so I need to correct it manually.
  
  How can I simultaneously change the length of the layers without messing the scene?
  
  I've tried to show the things in this picture. Thanks!
  
  [![enter image description here](https://i.sstatic.net/Y5YpH.png)](https://i.sstatic.net/Y5YpH.png)
  
  **Tags:** after-effects
  
  > **Comments:**
  > **username_1**: It works the way it is supposed to. You just need to realign the layers afterwards.  
  > **username_0**: Well, I know. I'm just hoping there is another way to adjust the length of the composition.  
  > **username_1**: I'm having a play and a look at documentation to see if there is another way...  
  > **username_2**: Seems like a job for a script.  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_3 on 2017-12-21. Score: 0
  
  You can nest this two clips in new composition, and change time starching on it.
  
  > **Comments:**
  > **username_0**: I know, but it's not smart since there are some After Effects transitions. I mean, if I stretch the layers, the transition just goes slower. But in your case it will be just drop in framerate.  
  
  ---
  
  ### Answer by username_4 on 2018-10-23. Score: -1
  
  I don't know if it works, but you may add a marker on each layer when the transition without stretching starts pressing this key: \*
  
  Then, I think the markers should be paired with the original frames and then you just have to match them in the timeline again.
  
  Sorry if this doesn't work or there's a better way, it's just an idea.
  
  
  ---
  
  