Capturing the Employee Performance Rating in PA for Every Year

Dear Professionals

My client currently using OM, PA & PY modules and they don’t have Personnel Development. They would like to capture the Employee Appraisal ratings alone in the existing set up. They have 5 point scale ratings like 1.Extraordinary 2.Very Good 3.Good 4.Average 5.Not Acceptable.

When I am searching in net I found there is an option to capture the details in IT024 or IT025. Whether it is possible to capture the ratings alone in IT0024 or IT0025?

If it is possible pls let me know how to configure the same.

Thanks in advance.