About Working with Model Datum Planes
Datum planes appear in the drawing under these conditions:
• Temporarily, when you are orienting the model while creating a drawing view (this is the only time it displays a datum plane that is not perpendicular to the screen).
• When the datum is a draft datum.
• When you have set the datum plane as a reference datum and it is perpendicular to the screen.
To manipulate set datums, select set datums, right-click and click Properties on the shortcut menu. Set datums appear regardless of the setting in the Environment or Datum Display dialog boxes. You can erase them from a view by selecting the set datum, right-clicking, and clicking Hide on the shortcut menu, or by blanking them individually or on a layer.
You can also use shortcut menus (accessed by clicking the right mouse button on an object) to modify and manipulate 3-D set datums in the following ways:
• Move them to a different location on the drawing sheet.
• Redefine them.
• Erase and unerase them.