Controlling the Display of Alternate Units

To add and format alternate units

1. From the Format menu, choose Dimension Style.
2. In the Dimension Styles dialog box, choose Annotation.
3. In the Annotation dialog box under Alternate Units, select Enable Units and choose Units.
4. In the Alternate Units dialog box under Units, select a unit type from the list of dimension types.
5. Under Dimension, select a precision value for the alternate units.
6. Under Scale, set the unit scale factor for alternate units. Then choose OK.
7. In the Annotation dialog box under 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. Choose OK.

Dimension toolbar:
Command line equivalent: DDIM