smartform Layout

Hi

Can we take more thant one smartforms in one layout type.

like i have one layout PINV_LAYOUT .

In that layout 2 smartform i added but function module call in programe it is only one for both smartform?

so my questiong is that can i add one more smartform in this layout and its require to call its functional module in programmme ? or only by selection it wil call my new added smartform.

plz give me reply its urgent.

THnaks in advance.

Prashant.