Item Restrictions

Hi, We have introduced Item Restrictions in JDE just recently. We are restricting our customers from buying certain products by putting "E" in their account and then listing items they cannot buy in Item Restriction.

In the future we would like to have a functionality that will help us in updating their Item Restriction code ("E" or "I") from Billing Information page in Customer Master. Can someone please help in telling us how we can update more than one accounts Billing Information page at a time. Doing it one by one is a lengthy task.

Thanks in advance.