When you use Vimeo Create, the video's duration is set automatically during the video creation process.
There are four (4) ways to adjust the video duration during the editing process:
1) Add/remove footage - Add more photos and videos to your video to make it longer, or remove footage if you want to shorten it.
2) Set the scene duration - The length of each scene is automatically set by Vimeo Create, however, you can manually set the time a scene (image or text scene) is displayed in your video.
Note: Duplicating scenes will add time to the video. While splitting, scenes may change the time based on Style/Transitions Rendering.
3) Trim video clips - Use the trim tool to extend or shorten the trimmed part of the video clip. Extending the video clip will extend your video length.
4) Add text to your scenes - Once the text is added to a specific photo, the photo’s display time changes so that the viewers can properly read the text. This will extend your video length.