modify the feature, it will update in two part

Hi,

   I am creating a new part and save it as "A". In this "A" Part, There is three configuration namely B,C,D.

   And Saving "A" Part as "D". In this "D" Part, There is three configuration namely E,F,G.

  I am modify the "A" Part, it will update in "D" part also

  Please tell me the any method for this.

Thanks,

Poornakkumar P

SolidworksParts And Features