Billing Document Print Issue

Hi Gurus,

we have multiple line items with same pricing in billing document.

Pricing is calculated on each line item.

print preview also showing item wise- price/bed/cess/discounts.

But client wants to have just multiple line items line by line and the pricing to be grouped to one for the entire quantity of all the line items.(there is no price variation for line items- same price and all conditions same).

How to get the print in the above manner.

Please share your valuable ideas.

Thanks in Advance

Sri