Marco, about 2 months ago I received the Roadtrek "official" video that their sales dept. gives out, and it showed the same process as was shown on your link here.
I will say that the video that was given to me was copyrighted in 2004, so it definitely needs to be updated. At least to take the Dodge van process out of it.
Bob & Sharon
2019 Winnebago Travato K (2018 Chassis)
Past RV's: 2013 WGO ERA 70A, Chevy PW Lexor
Itasca Navion, 29' Jayco 5th Wheel