Each stage has a different set of layers. Layer applications override object assignment. You can temporarily turn off layers without losing the associated properties. The additional functionality of layers means you will have to plan ahead to create well-organized layers. Layer Attributes Use the following attributes to organize your model.
Pickable layers Objects on a layer are pickable by default.
Colors You can set any inactive modeling color to a pickable layer in the Layer bar. The default inactive layer color is blue, and the reference layer color is brown. The default color for an unassigned layer is yellow. To set the color for a layer tab, click the square beside the layer name in the layer bar and select one of fifteen colors. Click the Edit button to open the Color Editor and edit the color of your layer tab.