Use this procedure to change the following default display properties of a display representation:
By default, the layer of object components is layer 0. The default color and linetype are ByBlock. With these defaults, the object components inherit the color and linetype properties of the “parent” object. For example, when the color and linetype of the door frame component are ByBlock, the door frame has the color and linetype of the door object. Object components cannot exist outside their parent object as can typical AutoCAD block objects.
Changes made to a display representation apply to every display set and display configuration that use the display representation. To apply changes more selectively, create a display representation based on the representation you want to modify. You can then change the display properties of the new representation and assign it to specific display sets.
The display properties you can edit depend on the object and the display representation that you select. For example, a wall in a model representation displays only the Layer/Color/Linetype tab; a wall in a plan representation displays two additional tabs to specify display properties for hatching and cut plane components.