Allows you to create new additional materials or update, if Name matches an existing additional material, existing additional materials. It can be contained within a COMPONENT or PIPELINE element. When the statement occurs as part of a PIPELINE element, the new additional material is created at the Pipeline level.
You must specify the ComponentType and the Configuration of the material. In most instances, the configuration is set to Dimensionless. After you have created the item, you can use EXTERNAL-MAP statements to define material properties. Usually, these properties are applied to the material (inside a <MATERIAL> tag), although they also can be applied as attributes of the component.