Since a command is simply a one or more actions that the robot performs it makes sense to describe the autonomous operation of a robot as a command. While it could be a single command, it is more likely going to be a command group (a group of commands that happen together).

Once all the subsystems are defined and filled with sensors and actuators you can produce a wiring diagram that will help the team wiring the robot to make sure that the electrical connections between the components and the cRIO robot controller are correct.

The RobotBuilder program has some default properties that need to be set up so the generated program and other generated files work properly. This setup information is stored in the properties for robot description (the first line).