Supervisor PO Approval starting from 2nd Level instead of 1st level Supervisor

Summary:

We have a PO Supervisor Approval where the approval of the document should start from 2nd level supervisor.

Use Case:

We have to create supervisor approval hierarchy for purchase orders such that, 'B' is the Buyer, her Supervisor is 'S1', and 'S1' supervisor is 'S2', and 'S2' supervisor is 'S3'. So, whenever 'B' creates and submits the purchase order for approval it should directly go to 'S2' and then to 'S3' based on the limit, instead of going first to 'S1'. This is how we want to maintain the supervisor approval hierarchy.