Well the question is fully written in the title 
I wish to know if there is anyway in UE4 to utilize IntelHD (for example) while the normal rendering is going to lets say nVidia ?
I suppose that the compute shadets of intelHD will have to be compiled outside of UE4 and injected to intelHD during the initialization of the Applucation.
But, can UE4 offer something to help dealing with it ?
Some built in support or… whatever ?