Right-click in the drawing area, and choose Properties from the shortcut menu.
In the Properties palette, click Linetype, and then the down arrow. From the drop-down list, choose the linetype that you want to assign to the objects.
Press Esc to remove the selection.
Note:
The linetype that you specify overrides the default layer linetype for the selected objects.
If the linetype you want to use is not on the drop-down list, follow the steps in the task, To Load a Linetype.