Feature Dictionary: Creating Classes and Attributes
The feature dictionary editor allows you to create delete and manage object classes. Object classes are classifications under which you create various objects, like components, for storing in the catalog. You may, for instance, want to have several object classes under valve_function, one of them being check_valve_function, and create various types of check valves under the class. After adding the object classes to the feature dictionary they must also be added to the Function Physical Mapping tables in order to become available in the Class Browser during parts placement.
Click here to see feature dictionary documentation.
Also refer to the Understanding Project Resource Management.