CHANGING THE DOCUMENT ROOT DIRECTORY
To change the document root directory in Plesk, follow these steps:
1. Log in to Plesk.
2. In the left sidebar, click Websites & Domains.
3. Locate the domain you want to edit, and then click Hosting Settings:
The Hosting Settings page appears.
4. In the Document root text box, type the file path you want to use for the new document root directory.
5. Click OK. Plesk changes the document root directory.