Trying to add % based fee to a contract to calculate as an Invoice Line of the Total Billing Amount

Summary: We have a requirement to add a % based fee to our Contract that will generate as a separate invoice line when running the Generate Invoice process. It should be based on the total Billed amount.

For context we attempted to use the Process Configurator to setup an invoice calculation utilizing Bill Plan Number DFF and the Calculation Level Invoiced amount as sources. The issue is when setting this up, Adding a % to our Bill Plan DFF, and running Generate invoice the invoice is being created but it is not creating the Fee Event as a separate invoice line. Instead it seems to be spreading the fee at the invoice line level for different expenditure groupings. We would need the Fee event created and distributed as it’s own invoice line.