Modifying View and Edge Display
You can define display settings that apply to all drawing views or you customize the display of individual views. For example, you may show one view of a model with hidden lines, and then depict a detailed view of the model with wireframe.
The various view display options can be applied to individual views, edges, or assembly members. If multiple items are selected, any display changes you make are applied to all the selected views.
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Once you have set the display mode for a specific view, it remains set regardless of the setting in the Environment dialog box, unless you choose Default
The hlr_for_quilts configuration file option controls how the system displays quilts in the hidden line removal process.
The hlr_for_pipe_solid_cl Detail option controls how hidden line affects pipe centerlines. This option only controls pipes created in  the Piping mode, not on pipe features in a part.