How can we put a quick invoice on hold while working on it so it doesn't get picked up by intra day

Agencies at the State of Minnesota have started to use Quick Invoice to enter large vouchers (40 + lines).  But voucher build that is scheduled intratday picks up the voucher prior to the user being done entering all the information.  They then have to finish entering teh voucher information in regular entry which is agonizing slow for vouchers with large number of lines/distrib lines.

How can they put it on hold so it doesn't get picked up in intra day voucher build until they are done working on it??

Thank you!