Changes made for Pathfinder 5226 controllers.

On some double folding machines there are the standard sheet grippers used for most of the parts and an alternate gripper that is mainly used for parts that have a flange already bent into the material. The way this gripper is designed is that it will extend past the sheet gripper, open up and grip over the flange. It can also just extend and be used as the gauging surface for the flange. To use the gripper in this way the user needs to choose the backgauge mode to be Alternate Nose in the part step. Once chosen the controller will position everything needed to use this gripper for nose gauging. This type of gauging can only be used in Semi-Automatic mode with a pedal.