"Stretching" keyframes proportionately

[Ireground]

Hi everybody.

I just switched to PPro from Sony Vegas. Is there a way to "stretch" multiple key frames so that they keep their relative distances? In Vegas, I'd hold Alt while moving the last selected key frame and it would work. In PPro, that copies the key frames. I've tried all other modifier keys/key combinations and nothing does it. Is that even doable in PPro?

Thanks.

[excited_Genie16B8]

I'm not aware of this functionality.  You'd have to do the math and move the keyframes manually.

[RobShultz]

Not in PPro. After Effects does it the way that you described.

Possible work around.

You can copy the clip with the keyframes. (Edit/copy)

Make a longer version of the clip in your timeline, (Edit/paste attributes) on to the longer clip. and check scale attribute times in the paste attributes panel. replace the shorter clip with the longer one.

Not as convenient as the "stretch/compress option" but no math.

[Ireground]

So this begs the question: if it is in Ae, why not in PP? Guess I'll have to ask for it as a feature request. Thanks for the replies.

[bevis.hobbs]

Just change the speed by right clicking on the clip and it spreads out the keyframes.

[marc.horsform]

Changing the speed by right clicking doesn't work for me: the keyframes stay in their initial position.

[Ann Bens]

Make a preset of the keyframes and save it to Scale.

Re-insert clip on timeline and drop preset.

[marc.horsform]

Thanks, Ann: works fine!

All my masking keyframes are preserved and show pretty well in the resized version of the background image.

This technique is not intuitive at all, but it does the job!  ;o)

[PetrVob]

I found this tutorial: https://www.youtube.com/watch?v=PFbFUvfMVgE

But the Alt key no longer works for this and copies keyframes, I don't know what they replaced it with for this functionality.

[MyerPj]

That's After Effects Petrv.