Someone please explain to me in the simplest most easily understandable way you can imagine how to do this! Call me thick or whatever you want or you could help me out Im reading the booklet and honestly I cannot get my head around this section, all the other sections I breeze through. Im numerically dyslexic, not using that as an excuse but might have something to do with it! Doing my f'ing nut in! The booklet isn't helping me at all, don't understand it!