Why are the Level and Color options for Hidden Edge Symbology in Structural Rules grayed out?
Structural Drawing Extraction Manager hidden edge overrides in Drawing Views are honored as much as possible using Display Styles. This means honoring only 0 weight and 1-7 linestyles in the hidden edge overrides of a Structural rule. If weight > 0 or style 0 (continuous) is specified by the Structural rule, the visible edge symbology (as modified by the Part definition) is used for hidden edges. Hidden Edge color/level and custom linestyle overrides are NOT supported by QuickVision, so this is as far as we can support DEM hidden edge overrides in Drawing Views.