Mia Material X is connected directly with Mental Ray, so once again, Mental Ray needs to be activated in order to activate this function.
So this whole tutorial was more of an exercise in the hypershade rather than in Maya. Things like HDR lighting, final gather, render resolution and color correction can be applied really well here.
I think Alan actually worded this pretty perfectly when he said that Mai Material X is like "A Swiss Army Knife" (A Postings. 2016)
The whole idea the whole idea of this shader is that it can do a ridiculous number of things, it can be chrome, copper, water, glass rubber and ect, ect, ect. This is a material that really just needs to be experimented with in order to get the correct result.