I would be hard pressed to back up a set of doubles like he does and I used to back a 48′ O2 tanker a half mile through the VA hospital in Tacoma, WA and where the tanks, a hard left and an immediate hard right turns at 3am in the morning..One, he doesn’t use a trailer dolly for the second trailer, an extended trailer 5th wheel, so he doesn’t have two extra pivot points. It is a European truck and trailers and that suicide knob would get him a ticket here in the states. I don’t know if that length and set up of trailers and the bridging would be legal either.
Edited to add,
The Tactical Hermit sent it to me and I forwarded it to CederQ because I know he used to drive trucks.