Use this procedure to control whether hidden lines of a material should be displayed in a section or elevation.
You could do this, for example, if you want to display concrete walls and footings that are hidden by the ground and by other walls. Another frequent use could be to display structural members that are located behind walls.
Displaying hidden foundation walls
The Style Manager is displayed with the current drawing expanded in the tree view.
The display representation in bold is the current display representation.