Hmm I wonder if that's a bug. The menu is there in my Blender 2.79...Are you using the official version of Blender 2.79 and not an experimental build?
After watching the video again, it turns out i've been looking at the UV/Image Editor instead of the 3D view (oops). In de 3D view the options in the video are present.
Ah ok, that makes sense 👍
