Reply to logitec joystick mapping for controlling an effects knob

Hey Ladies and Gents, I have began a mapping for a Logitec Wingman flight joystick to use as an effects controller in traktor 2.6. The spot I am stuck with is how to/command I need to have to get the joystick to work as a peramiter knob. Any ideas on how I would get that to work?
Thanks in advance...