F4 Help

Hi,

I have place two fields on a screen . and I have Created a Search Help for the Second Field. But when we press F4 , It is giving all the Database Values. But I want the Values according to First Field only not all the Database Values. How Can we do it for the SCREEN FIELD ? Is there any F.Module which gives this type of data and How can we add it to the SCREEN Field ?

Thanks and Regards,

Satya.