Regarding Header in ALV Grid display

Hi,

I want to display Multiple headers in ALV Grid Display.

for e.g.

company code A

plant A1

date xx.xx.xxxx to xx.xx.xxxx

a list with all the material related to this company code and plant

company code A

Plant A2

date xx.xx.xxxx to xx.xx.xxxx

a list with all the material related to this company code and plant

and so on untill all the plants related to that particular company code are not displayed.

Kindly reply soon,

Its very Urgent.

Thanks in Advance,

Poonam.