Value in Eligibility Matrix for Product Id and Product Line Id

Hi,

I have a requirement in which they want to have Product and Product Line populated in the Product Eligibility Matrix.

We are facing below issues:

1. Once i populate the Product, Product Line & Product Class will be disabled.

Then i removed BC User Property for all the 3 fields.

2. Now all the 3 fields are editable, but if value is populated in one field other field values(Product Lines & Product Class) are disappeared &vice versa.

Please let me know what needs to be done for this.