Issues on ALV's

Hi all,

I have a few issues on ALV's. Please give me an Idea

1. Can we have page breaks in ALV depending on the plant.

ie. If the plant changes the out put should break and new page should start.

Is this possible in ALV with function modules

2. Is it possible to print header in the following format

Main Header

H1 H2 H3 H4

1 2 3 4

1 2 3 4

1 2 3 4

Ie the header should be in cells above and below as shown.

Main header is on cell

and sub headers are partitions on main header

Please help me to resolve the following issues

Thanks in Advance

Vijay