Editing a Dimension (2D)
You can edit the dimension properties in a drawing.
You can edit the dimension value in the Text field, when the dimension acts as a geometric constraint.
- Select a dimension.
 - Select Edit.
 - Edit the dimension properties in the dialog box.
Text and Dimension Properties
 Properties of Dimension End Markers
 Text and Dimension Data - Select OK.
 
 Select the dimension, and then select the context-sensitive function 
Properties. You can also double-click the dimension.
Note: 
  - You can edit several dimension precision at the time. 
 Editing the Dimensioning Precision of Dimensions - You can remove the dimension by selecting one or more dimensions, and then selecting the Delete function from the context-sensitive menu, or by pressing the Delete key.
 
