How can I trim a video?
Click the Trim button and the video trimmer is opened where you can trim your video by adjusting the yellow trimming sliders on the video track.
The video track shows a thumbnail of your video and allows you to have an overall preview.
Drag either one or both sliders on each end of the video track to decide your video’s length. Then drag and move the icon on the top of the video track to select the start and end point of your video.