To delete an axis division:
1.Double-click on the axis division.
2.On the Appearance tab of the Properties dialog box of the axis or color legend, uncheck the Divisions and/or Subdivisions option.
Note You can also delete an axis division by selecting from the Format[Lines] > Color menu the entry No Line.
To add an axis division:
1.Double-click on the axis to which you would like to add a division.
2.In the axis Properties dialog box, click on the Appearance tab.
3.Select Divisions and/or Subdivisions.