If you want to create a new web application using an existing one, you can use the Save As option. When you use this option, we will copy all the configurations from the selected web applications and create a new web application. You can provide a new name or save the web application with the default name ( a prefix “copy of” is added to the existing name).
You must have Create Web Application permission to clone a web application.
To clone a web application, select or hover over a web application, and from the Quick Actions menu, click Save As.