Invoicing multiple expense items as a single line item

Invoicing multiple expense items as a single line item

      My client would like me to invoice them for multiple expense items on a single line item on an invoice.  Can this be done?  I know I can import billable expenses to an invoice, but I don't know how to show them as a single line item or have them be marked as reimbursed when that invoice is paid.

Any ideas?

Jake