Forms :: Batch Creation At 10 Records

I'm working on a Self assessment project regarding our tax returns. Currently, this is how it works - a return lodged generates a return number, but is batched later. In the change proposed, they want the same process whereby a return is generated still, but at a count of 10 returns generated on the same screen, a batch is to be created and these 10 returns will have to be added to that batch. We are on Oracle 10G and work with Forms, Reports 10G and TOAD/SQL Plus as tools so I was thinking of changing it on Post-Query but suggestions are to add on to System Parameter table.