Line styles are used to indicate different effects, such as a dashed (------) line for reference planes. When you install and run Revit, several line styles are included. Each predefined line style has a name that describes either the line (for example, Dash dot), or where Revit uses the line style (for example, <Sketch> lines).
Revit stores the line styles in the default project template. See Project Templates.
When you are in the Family Editor, you cannot create new line styles, but you can modify line weight, line color, and line pattern.
To create and modify line styles, click Manage tab
Settings panelAdditional Settings drop-downLine Styles.