Optimizing Misc Transactions

Dear all,

When ever we are performing Misc Issue for Serial items, after pressing lot serial , and entering the start serial num the ending number is only generating one qauntity,

In other words say If we have to issue out 10,000 num serial quantity If I enter the starting serial number  the ending serial is must be 10,000 plus the starting serial number but,

the ending serial generated is the very next number , and I have to add another line to capture serial numbers for the rest of the quanity, while capuring serial numbers I s there a way to capture all the transaction quanity from one single line please help me out with this