To change settings of a virtual directory within a website, perform the following steps:
1 - 1 - Logged in to Plesk, https://your domain name:8443.
2 - Go to Websites & Domains, and find the website's domain name.
3 - Click Virtual Directories.
4 - Click Directory Properties when inside the required directory.
5 - Change the settings as required.
6 - Click OK to save changes.