Alpha Spot Zoom on Fader

Hi to All :) Sorry if this is a silly question, I'm a noob to Hog 4 console, I have an Alpha Spot HPE 700 and I want have Focus on a fader, however the default value is 50% hence I obtain a range on the fader from 50% to 100% after programming, How do I obtain a 0-100% on the fader?
Also, holding down OPEN + Rotating Parameter Wheel for Scroll Up/Down works but not working Scroll Left/Right, Why! what am I missing here?
Help would be much appreciated, Thanks in advance and Kind Regards >:D<