BDC REOCRDING in Module program.

Hello guys.

I have a requirement to update standard reports through my customized program so thats why I created a recording of Fb50 and want to add this recording into my Module pool customized program, but When add this It Giving me a error of "FORM "BDC_DYNPRO" does not exist" So add include bdcrecx1 which i commented before , so then it gave me error of  "Within FORM routines and function modules, the SELECTION-SCREEN  statement is not allowed." 

Please guide me in this regard .

Waiting for your response.

Thanks