Use this field to specify the order of the values of the nominal variable to color by. This also determines the order in which the values are displayed in the legend.
Type the values in the text box in the desired order. Each value must be contained with double quotation marks ( “” ). Values must be separated by commas .Example : A specified color variable with values A , B , and C can be reordered to sort as C , B , and A by typing "C","B","A" in the text box, as shown below: