How to Create Secondary Approval Rule using AME for Position Heirarchy ?

Hello,

We are deploying a brand new position heirarchy for the document type Blanket Purchase Agreement.

Irrespective of the approval limit, all the blanket purchase agreements must be approved by catalog manager to ensure compliance.

How can this be achieved by using Approval Management engine ?

Any documents, blogs, screen prints will be highly appreciated ?

Many Thanks,

Siobhan