... center:Analog inductiveKeypad layout: Membrane Keys8 Basic FunctionsAuto, manual, servo-center Sensor key selectionsLeft edge, right edge, center line, ... setup, transparence setup (opacity), guide point adjustment,system and servo-center gain adjustmentJog left (- key), jog right (+ key) ... a highly accurate, Type I, proportional, closed-loop servo system with a high dynamic response to the running web ...