Part Modeling > Modifying the Part > General Editing > To Edit Datum or Axis Properties
  
To Edit Datum or Axis Properties
1. Select the datum plane or axis in the Model Tree or the graphics window, and right-click and choose Properties. The Axis or Datum dialog box opens.
2. Change the name, type, or placement of the element you selected.
3. Click OK to see the changes in the graphics window.