Is there any hotkey to make markers visible. I can not see markers in the blender file provided. I am using blender 2.79

i suspect that the markers are not in the file provided. the motion is also timed differently. 

you can add markers by pressing M then Control M to rename. 

jd

I was wondering this as well. Originally his Blender window doesn't show markers, until he says "revert, and revert" (1:37) Looks like it loads a different setup...