To Specify the Line Type of Layer Group (AutoCAD Mechanical)

1. Click Home tab > Layers panel > Layergroup Manager. Find
2. In the Layergroup Manager, right-click anywhere in the Linetype column.
3. If there is no tick mark in front of Use Layergroup Linetypes, click it once.
4. Click in the Linetype column of the layer group you want to edit.
5. Specify a line type.
6. Click OK until all dialog boxes close.