Configure Blanket Purchase Agreement to Derive Agreement Amount=Line Price X Line Agreement Quantity

Hello!

In Oracle Fusion Procurement, how do we Configure the Blanket Purchase Agreement to Derive BPA Header Agreement Amount by Summing a Calculation of each BPA Line Price X Line Agreement Quantity?

This doesn't seem to be what we are looking for: Route Blanket Purchase Agreements for Approval Based on the Sum of the Agreed Line Amounts

This seems only usable if you use Negotiations, which we currently do not: How you Derive Agreement Quantities

Thanks!