Purchase Order Approval via only Final Level Approver using AME

Hello All

We have a requirement to setup Purchase Order Approval as per below mentioned conditions using AME

For PO - If we have 4 Approvers, Then all the Notifications should be sent in one go. And only if, Top Level approver has approved the document. Then the document should be considered as approved even if, Approver 2,3 have not approved the PO.

Thanks