Using AME for Purchase Orders but not for Agreements - EBS Purchasing 12.2.9

This is regarding enabling AME for approvals for Purchase Orders only in EBS 12.2.9. I have scoured the support site and available documentation, specifically the following:

How to Define Style and Document Type for Purchase Orders when Using or not Using AME (Doc ID 2036287.1)

R12 Required Setups For Purchase Order Approval Using Approvals Management Engine (AME) (Doc ID 1487713.1)

Whereas the notes are helpful there is one aspect that does not seem to specifically match my findings. My objective is to use AME approval rules for Purchase Orders regardless of where they are created - Buyer Work Center or Professional forms. But I do not want to enable AME for Blanket Agreements or Contract Agreements regardless of whether they are created in Buyer Work Center or Professional Forms.