I don't see where the guage is renamed to Right Motor Encoder. It's called Guage at the top of page 5 and the picture at the top of page six is called Right Motor Encoder. It won't work unless the object is renamed to Right Motor Encoder.
Additionally, it would probably be worth mentioning that this method only works on the Operation tab. Otherwise, SmartDashboard get must be used.
Just a simplistic overview of what's in the dashboard. It completely ignored the Dashboard pallette, its 14 Smart Dashboard functions and other functions. What I had hope for was to figure out how to read a sensor on the dashboard that could communicate with other actuators. All it showed was an introduction.