To the left of your Project's name, click the arrow pointing downward on the Descript 'D' icon. Once clicked, you'll expose a menu where the option to "Duplicate Project".
Once selected, a pop-out window will appear that allows you to name the duplicated Project, set the location where it will be saved on your Drive, and determine the Drive permissions for other Drive members.
Once completed, you'll see a pop out on the bottom right of Descript prompting you to open the duplicated project.
