To Place Text at the Second Extension Line
Click
Home tab
Annotation panel
Dimension Style
.
In the Dimension Style Manager, select the style you want to change. Click Modify.
In the Modify Dimension Style dialog box, Text tab, under Text Placement, select Over Ext Line 2 from the Horizontal list box.
The example area reflects your selection.
Click OK.
Click Close to exit the Dimension Style Manager.