HELP!! Precision Flight Controls question - Nose Tiller 737?

Dear All:I recently purchased the Precision Flight Controls Jetlilner Yoke, rudder pedals and 4 engine throttle quadrants. I used to use the CH pedals control Yoke. Ever since I switched, I no longer seem to have a lever to control the steering tiller. Is there a way I can still control this manually? The pedals only move the wheel the usual 6 degrees. I tried to assign the tiller to the spoilers lever but it only moves the rudder when I try tnis. Is there a keystroke I can assign to the tiller, etc? Any ideas?Any help would be greatly appreciated.Chris Catalano