You use the three buttons in the Switch Attributes to add, remove, and map textures to objects. The inShape column contains the objects you want to map the utility to. The inTriple column contains the texture, file, or placement node you want to map to the object.
Find this utility in the Create tab (see Create tab).
To use this utility, see Use the Triple Switch utility.
Click to determine to which shading groups the Triple Switch utility is connected and connect all the surfaces in those shading groups to the Triple Switch utility.
Contains the name of the shape (the object) you want to connect to the Triple Switch utility. You can add as many objects as you want to this column.
When one of the objects in this column is rendered, Maya sets Output to its corresponding value. When none of the objects are rendered, Maya sets Output to equal the Default setting.
Contains the texture, file, or placement node that you want to map to the object. See also Map Item.
Removes the currently selected row in the Switch table.
Highlight the InShape column then click the Map Item button to select a texture, file, or placement node to map it to the object.
For Triple switches, the Default attribute represents the RGB channels of a color.