Can the data for the x axis on the weight and balance envelope graph be changed? I have my club aircraft set up with all the loading points and arms etc but the graph in the aircraft PoH relies on "loaded aircraft moment/1000 (pound-inches)" as opposed to the arm. This means that when I set up a flight (C172 btw) with 2 up and full fuel the graph shows it shows that i would be extremely out of balance, whereas it is actually quite within limits.