At 1:20 in the view he says to press the “N” key to view the View Properties Panel. A view properties panel comes up but I do not have the options for the UVs section that it shows on his screen. How can I access them?
The UV stretch properties in 2.8 are in the “topbar” of the UV editor window. All the way on the right of the toolbar (you’ll have to pan it to the right till it stops) you’ll see a “Display” dropdown where’ you’ll find the UV stretch options.
The previous answer is out of date. As of now, you can find the UV options by placing the mouse in the UV editor panel, pressing N, and looking under the View tab, Display, Overlays.