Datum Lines View
The Datum Lines View, 
, displays only the datum lines in
                the session, grouped within their respective page and plot folders. Clicking on a
                datum line displays the datum line's properties in the Entity Editor.

Figure 1.
When a datum line is selected, the following fields are displayed in the Entity Editor:
Standard
- Name
 - The datum line name, created when you add a datum line.
 - Label
 - The datum line label.
 - Visibility
 - Click the check box to display the datum line in the modeling window.
 - Layer
 - The layer ID.
 - Position
 - Enter a value in the Position field.
 - Associated Axis
 - The axis the datum line is associated with.
 - Type
 - Horizontal or vertical datum line.
 
Display
- Font Settings
 - Define the font type, style, and size.
 - Label Location
 - Select the location for the datum label in the modeling window.
 - Line Style, Line Thickness, and Line Color
 - Set the datum line attributes for line style, thickness, and color.