How to split the Non Labor expenses based on resources on invoice lines in Project Billing?

Oracle PPM Cloud does not have a grouping option for non-labor billable items to group by non-labor resource (Person or Supplier) on an invoice in project billing. Client has a requirement to Bill by Resource where all the Labor & Expense Transactions are grouped by resource.

Oracle Fusion Billing is creating single invoice line for expenses for all the resources while multiple lines based on resources for Labor Transactions on the Invoice. Example: Airfare invoice line will contain transaction of all resources. Client requirement is to have invoice resource wise.

We have used 'Contract Line Project/Task, Person' as the grouping option in Labor Invoice Format but can't see 'Person' in the Non-Labor Invoice Formats.We have used 'Contract Line, Contract Line Project/Task, Expenditure Type' as the grouping option in the Non-Labor Invoice Format. There is no grouping option for Non-Labor Invoice format by person.