A/P - updating the net due date after the voucher has been entered

We have tried to use speed status change to update the due date in instances where we need to pay invoices sooner than the discount or net due dates.  We did not get the results we desired, in that using speed status change we update the DDJ field but not the DDNJ field, so the invoices were not selected when creating a pay group.  Does anyone have a process that you use to update DDNJ?  Right now we are requesting SQL updates from our IT department which I would like to eliminate.

Thanks in advance to the group for your time and input!