To delete an orientation arrow, do the following:
1.Double-click on the orientation arrow.
2.On the Appearance tab of the axis or color legend Properties dialog box, uncheck the Orientation arrow checkbox.
To add an orientation arrow, do the following:
1.Double-click on the axis or color legend to which you would like to add an orientation arrow.
2.In the Properties dialog box, click on the Appearance tab.
3.Check the Orientation arrow box and specify the desired Position.