How to use nvidia card on Optimus based laptops

Hi all,
I know that for the moment laptops with nvidia optimus cannot use the 2 graphic cards at the same time on macos.
But, there is any way for using only the nvidia card and disable intel card?
my laptop currently is using only intel card and i have disable the nvidia card with dsdt modification.
my laptop is an Asus n551jw with intel hd 4600 and nvidia gtx 960m.