Selecting Autonomous with TI LaunchPad?

[sraque]

Originally Posted by Alan Anderson

In the "old days" when the joystick values were all returned during autonomous as neutral with no buttons pressed, the typical tactic was for the user program to read and save the values while the robot was disabled before the match began, then use the saved values during autonomous. That is now done for you by the system.

Is there a document somewhere that captures this, and similar, system design information?