Format Menu

On the context menu of a dimension line, choose \<emph\>Dimensions\</emph\>.

On the \<emph\>Lines and Arrows \</emph\>toolbar, click the \<emph\>Dimension Line\</emph\> icon.

Select the layer and choose Format - Layer

Open context menu of the layer tab - choose Modify Layer

Choose Format - Interaction

On the Standard toolbar, click