Every object in a Rhino model belongs to a layer. A layer can be turned off, causing the objects assigned to that layer to disappear from view. A layer can be locked, protecting the objects assigned to that layer from accidental erasure or displacement.
To create a new layer:
Type LAYER to open the Layers panel. Use the New button to create and name a layer; use the color swatches to assign colors to layers; use the Current button to choose a layer for drawing (newly drawn objects appear on the current layer).
To change an object’s layer, use either of these methods:
1. Type CHANGELAYER. Select one or more objects, press Enter, and then select the desired destination layer.
2. Type MATCHPROPERTIES to assign the properties of a source object, including its layer assignment, to one or more other objects.