Can't see any values on dashboard

[Kyledoo]

Hello, I am also having a hard time getting our Dashboard to display this data, even adding the code that supposedly does this. I am pretty new to programming for in C++ and for FRC, although I am somewhat familiar with programing practices in general, such and calling classes and the like.
We want to return PWM values but also Sensor values such as encoders and others. The only data that the dashboard returns for us is the battery voltage.