CCL:G: Changing gamma or w factor in DFT functionals available in G09



Dear CCL'ers,


I am trying to find how to change the gamma or w factor for certain functionals, such as wPBEh, WB97, wB97X, without much success.
 
I have searched the IOP list as well as the gaussian 09 online manual and I couldn't find how to access this parameter for these functionals.

Anyone knows if it is possible to change this parameter and how can I do it?

Thank you in advance,

Demétrio Filho