To Add and Format Alternate Units
Click
Dimension menu
Dimension Style
.
In the Dimension Style Manager, select the style you want to change. Click Options
Modify.
In the Modify Dimension Style dialog box, Alternate Units tab, select Display Alternate Units.
Under Alternate Units
Select a unit format from the list.
Select a precision value for the alternate units.
Enter any prefix and suffix for the displayed dimension, including a space character if you want a gap between the dimension and the prefix or suffix.
Click OK.
Click Close to exit the Dimension Style Manager.
Related Concepts
About Controlling the Display of Dimension Units