To Add and Format Primary Units

1. Click Dimension menuDimension Style.
2. In the Dimension Style Manager, select the style you want to change. Click Options Modify.
3. In the Modify Dimension Style dialog box, Primary Units tab, under Linear or Angular Dimensions, select a unit format and precision value for the primary units.
4. Under Linear Dimensions, enter any prefix and suffix for the displayed dimension.
5. Click OK.
6. Click Close to exit the Dimension Style Manager.