Yes, some of the documentation is outdated. The CL Joystick Assignment is no longer necessary. You can assign the condition levers to "prop", or "prop1" and "prop2" using the X-Plane UI. There are several threads related to this on these forums.
The Mini GPS is also outdated. This is no longer necessary since the aircraft now has the G530 in it.
Everything else in the Gizmo Menu is correct and still functional.
You can assign a key to autopilot engage/disengage, but you need to use the Saab commands, not the X-Plane commands.