>> To change the weighting of any chart point
1.On the lower part of the screen, click on the desired chart point in the list box
2.Click on the Increase Weighting or the Decrease Weighting button as many times as you wish - Each time that you click on one of these buttons, the weighting number for that chart point will be updated on the list. Note that a weighting cannot be set to less than zero or greater than one hundred.