You can undo any changes you make by clicking the undo icon below the preview. And, you can redo any changes you undid by clicking the redo icon. Related ArticlesHow can I change the video quality of my preview?How can I edit the script of my video and the voiceover?How can I replace the media in my video with another media or my own?How can I share a preview of my video?How can I make my shared video public or private?