Use the Timewarp soft effect to apply timewarps
to elements in the timeline. There is a separate Timewarp soft effect
button for video and audio elements.
To apply a Timewarp soft effect to video:
Select the video element.
Click the TW button (or press Alt+5 or Home from
the EditDesk record timeline).
The Timewarp quick menu
appears.
Set the properties for the timewarp.
See
Timewarps.