Dear Experts

I have three dbf’s as

Procuts
Addition
Discount

I want to print invoice in

In 1st band: Products
In 2nd band: Addition
In 3rd band: Discount

The print preview should look like this

Product-------Qty------Rate--------Amount
Apple-----------5---------10------------50
Banana--------30-------10-----------300
Sub Total------------------------------350

Addition
Supply expenses---------------------20
Sub Total------------------------------370

Discount-------------------------------70
Total------------------------------------300

Should I use more than one Detail Band or is there any other method exists.

Please help