1. Login into Plesk.
2. Look at the left hand side navigation bar and click Users.
3. At the Users page, you have to click the User Roles to go to the user roles page.
4. Next, you will reach the following page, you may click Create User Role to a new role.
5. After that you have to put a User role name and control the rights of the role at the radio button side.
6. Lastly, you have to click OK to complete the adding role process.