To access FTP settings in Plesk, follow these steps:

Go to the "Websites & Domains" page and click on "FTP Access".

To create a new FTP account, click on "Add an FTP Account".

To delete existing FTP accounts, select the accounts you want to remove and click delete.

To change the password for an FTP account, click on the name of the FTP account. Enter your desired password in the "Password" and "Confirm Password" fields and click "OK".

Note: Clicking the "Create" button will overwrite any password set by the user. It will generate a new password automatically. You can view the password generated by Plesk by clicking the "Show" button.