[Alan Anderson]

It's not clear to me what you mean. Each Joystick Open will create a reference to one joystick. You shouldn't be trying to modify any of the functions in the tool palette. If you want to open another joystick, just put another Joystick Open vi in the Begin vi. The Refnum Set and Refnum Get vis give you the ability to assign a name to each joystick's reference and to retrieve it for later use.