R11i recurring invoices in payables.

Hello We are thinking of using the recurring invoice functionality in Oracle R11i payable and was wondering if anyone can tell me if it is possible to create a template and change the amount each month to allow for a variable amount.

For example,

An invoice with two distribution lines would have a fixed amoutn and a varaile amount:

Hire payments - £3,000

Service charge - variable.

Thank you.

Regards

Bharti