Style and Standard Editor - Units Reference
Sets the units for datum target style and feature control frame style.
Access
Ribbon: Manage tab 
Styles and Standards panel Styles Editor 
. In the Style and Standard Editor, click to expand Datum Target or Feature Control Frame, and then double-click to show the style in the window. Click the Units tab.
Primary Units
Changes the format of the primary units of measure for values in datum target symbols or feature control frames.
Linear
Sets the units of measurement. Click the arrow, and then select from the list. The default is Use Common.
Decimal
For a linear unit other than Use Common, specifies the character to use as a decimal. Click the arrow, and then select from the list.
Unit String
Displays the primary unit type after the value in datum target annotations. Select the box to display the unit type. Clear the check mark to hide the unit type.
Leading Zeros
Shows or suppresses the display of leading zeros in datum target values. Select the box to display leading zeros. Clear the check mark to suppress them.
Trailing zeros
Shows or suppresses the display of trailing zeros in datum target values. Select the box to display trailing zeros, Clear the check mark to suppress them.
Alternate Units
Displays or hides alternate units in datum target symbols. Select the box to display alternate units. Clear the check mark to hide them.
Display Style
Sets the display style for alternate units in datum target symbols. Click the arrow, and then select from the list.
Alternate Units
Changes the format of the secondary units of measure for values in datum target symbols and feature control frames. Not available unless Display Alternate Units is selected in the Primary Units box.
Linear
Sets the units of measurement. Click the arrow and select from the list.
Decimal
Specifies the character to use as a decimal. Click the arrow and select from the list.
Unit String
Displays the alternate unit type after the value in datum target annotations. Select the box to display the unit type. Clear the check mark to hide the unit type.
Leading Zeros
Shows or suppresses the display of leading zeros in datum target values. Select the box to display trailing zeros. Clear the check mark to suppress them.
Trailing zeros
Shows or suppresses the display of trailing zeros in datum target values. Select the box to display trailing zeros. Clear the check mark to suppress them.
Precision
Sets the decimal precision for display of alternate units in datum target annotations. Click the arrow, and then select from the list.