Add a Synchronization Rule node () to let a material property group define material properties in another material property group using combinations of the material properties in this group you can add a synchronization rule.

To add an Synchronization Rule node, right-click a Material Property Group node () and select Synchronization Rule from the context menu. To add synchronization rules to the Basic material property group, add a synchronization rule directly under the Auxiliary Definitions node (). Here you select from the physical quantities when specifying the needed material properties.

You can access all added rules from any feature in the same file, or in any other file that has the former file added as an Import node under the External Resources branch.

Select Built in predefined material property, Locally defined material property, or Imported material property from external resources from the Property type list.

Then add the material properties needed to define the rule to the Needed material property list by clicking the Add () button and choosing material properties from the Add dialog box.

For each material property in the synchronized material property group, you need to add a Synchronized Property subnode (see below). There you select the property to define and enter the rule.