The Programming Wand connects to the PixiePlus controller through its IR interface and allows for more sophisticated features, such as RS232 control. There is no need to remove the controller from the wall. The programming wand connects to your PC with a USB connection and contains an application that allows you to perform more complex configurations, including specifying RS232 strings.
The Programming Wand simplifies configuration and cloning. Simply plug the programming wand into your PC, and the application will start. Then, specify the codes to be sent for each button. Disconnect the programming wand and take it to any other PixiePlus you wish to configure. Hold the wand up to the PixiePlus, press the trigger, and you're done. Repeat for each room with the same configuration, without having to carry your PC around.