We need a report consisting of Approver's name and cost account (to which account the invoice is booked) in the same report.

Currently those can only be selected on separate reports; whether you choose 'Create a new report with costs accounts' or report base 'Invoices handled by me' / 'Open invoices by the handler'.

The report should include all the Approver's invoices of all time, not only those which are open at the moment.