To Compare the Settings Between Two Dimension Styles
Click Home tabAnnotation panelDimension Style. Find
In the Dimension Style Manager, click Compare.
In the Compare Dimension Styles dialog box, Compare drop-down list, choose a dimension style.
In the With drop-down list, choose a different dimension style.
The dimensioning system variables that are different between the two dimension styles, their current settings, and brief descriptions are listed. Overrides to either dimension style are not included.