can managerial approver be changed for supplier PO change requests

Is it possible for supplier change requests to follow the same managerial approval route as the original requisition once the requisitioner has accepted the change, or for the requisitioner to manually select the correct approver?

Situation

Requestor enters a requisition in iprocurement

Requestor manually changes the managerial approver as appropriate depending on what is being purchased

Requisition is approved, and PO submitted to the supplier.

Supplier submits a change request on isupplier for a price or quantity change.

Supplier change request is submitted to requestor for approval

Requestor approves the change request

The amended requisition is sent for managerial approval, but does not allow the requestor to change the managerial approver, and it does not take in to account the managerial approver on the original requisition.