The delay settings (eighth and dotted eighth) are known among guitar geeks who study The Edge at all. I imagine this particular effects pedal was also shared somewhere in the guitar nerd world, and the guy in the video (who is hawking this equipment for his pro shop) probably just had to play a bit with the effects pedal settings.
But yes, he is playing a very credible riff there, hats off to him.
For the record, if I had a guitar and amp, that shop would definitely have sold those delays and effects pedals to me.