From this article you will learn how to create FTP Access in your Plesk Admin.
1. Login to Plesk Admin https://IPAddress:8443 or https://hostname:8443 .
2. Next go to Websites & Domains for your Website
3. Click FTP Access as per the screenshot below.
4. After that click "Add an FTP Account"
5. Fill in the example FTP Account details as below.
6. Click OK when finished.
7. Finally, a list of your domain's FTP accounts will appear as below.