Level Properties Styles tab

Contains controls that are used to set custom line style symbology for a level.

Level Properties dialog box, Styles tab

ByLevel Custom Line Style

Lists default custom line style settings for the selected level. When an element that uses a ByLevel custom line style setting is placed on the level, the element uses the custom line style setting assigned to the level.

Override Custom Line Styles

Lists override custom line style settings, which are view-dependent alternate settings for level symbology. When an element is placed on the selected level, it uses the custom line style setting assigned to the level. To enable the view override settings, open the View Attributes dialog box (Settings > View Attributes) and turn on Level Symbology.

Symbology overrides are disabled in DWG workmode. All elements are displayed with ByLevel symbology.