Packing materials that are in batches

Hi,

This is Vikrant. I have created a delivery document that contains a material that is manufactured in batches. Now when I go for packing, the quanities to be packed apper batch wise. For example if the total quantity is 20000 but it is manufactured in 20 batches, then all those 20 batches apear to be packed that is I get 20 line items of the same material to be packed. Is there any way by which the only 1 line item that is the sum of all the 20 batches can be genrated, so that packing can be carried out more effieiently ?

thanks for your help