Preview window for fbx

I am running Unity 3D 5.3.1 on a macbook. I have exported a simple animation as an fbx file. In the Inspector, I do not get a preview of the model or animation. Why is the preview window missing from the Inspector?

pull it up…

For unity 2019 - 156676-ayuda.png … I wasted 2 hours trying to find this :frowning: