By John Flanagan
AutoCAD 2020: Override a Dimension.
An override is a sub-dimension style that varies from its parent style.
Follow these steps:
1. On the Annotate tab, click the Dimensions panel’s dialog box launcher arrow (the arrow at the right end of the panel’s title bar). This opens the Dimension Style Manager
2. In the Dimension Style Manager, choose the style that you want to override and click Override (in this example, the ISO-25 dim style has been chosen).
3. The Override Current Style dialog box opens. This is similar to the New Dimension Style dialog box and you make your changes in the same way you would to create a new dimension style.
Click on the Lines tab and tick the little box to Suppress Extension Line 1. The preview will reflect the change.
4. When you’re done, click OK. The override appears in the Styles pane of the Dimension Style Manager beneath its parent style. Click Close. Dimensions that you create now use the override settings. This override suppresses the left extension line as illustrated.
I hope you found this tip useful.