Allow User to Preview Batch Voucher Export Details

We need to preview the voucher file before it runs to confirm that the invoices are set up correctly prior to submission to the university AP system - we can then make any needed corrections before submitting to AP.  Is there already a JIRA for this requirement? Or could this need be meet by adding a filter for batch group and an indicator of which invoices have not yet been included in a voucher export run?  We can't rely on the LDP for this preview since we need real-time data.