Use the Enterprise Analyzer Administration tool to modify characteristics and valid values of user-defined attributes, and to create custom attributes suited to your particular needs. Custom attributes are available to each workspace you create in the product.
The attribute definitions are stored in a file with a name of the form *.Repstry.xml. You can create multiple custom attribute files if you want, and switch back and forth between them as needed. Enterprise Analyzer applies the most recently saved definitions to your business rules.
Choose Rules > Extended Rule Attributes to open a limited version of this tool in which you can modify or delete the values for character-type attributes. If you delete values in use in existing business functions, rule sets, or rules, the default value of the attribute is restored.