Made change_display_method clearer
Made change_display_method clearer

cduff4464/2016_summer_XPD,cduff4464/2016_summer_XPD,cduff4464/2016_summer_XPD,chiahaoliu/2016_summer_XPD,chiahaoliu/2016_summer_XPD,chiahaoliu/2016_summer_XPD