Recurring PO Voucher creates PO with gross amount on a single line.

How do I split the line amount on a PO that my recurring PO voucher contract creates?  It currently displays the entire amount of the procurement contract creating inconvenient and unnecessary match exceptions when the invoice reflects the release amount vs the PO's 'gross' merchandise amount.  Must I use a different process option instead or can the contract be split out by schedule before the PO is created?