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Create a new schema file or open an existing schema file. The schema file should only contain meta-schema extension objects (no other schema objects).
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View the schema file.
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Select the Editor check box on the View Schema dialog box.
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Click the Editor tab and scroll down to the Environment tree.
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Select the Extend MetaSchema environment.
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Use the Extend Meta Schema dialog box to create and edit name display rules. The rules control the "name" used by the Schema Editor to display meta-schema and schema objects.
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If a meta-schema extensions file is opened and the session saved, the session file that is created will contain the meta-schema extensions file. The same is true if a configuration file is created. If this session file is opened, the meta-schema extensions file automatically load.
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Click New Rule to create a new name display rule (instance of NameDisplayRule). The Edit dialog box displays.
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Define the new name display rule. Existing name display rules can be edited by first selecting the name display rule from the combo box drop-down list and then selecting the Edit Rule button.
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When the extensions to the meta-schema have been completed, the schema file needs to be converted to a meta-schema file. To convert the schema file to a meta-schema file, open the schema file in Notepad or another text editor.
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Change the Scope entry on the first line from “Schema” to “MetaSchema”. If the need arises to further extend the meta-schema, then this same process can be done in reverse and the Scope changed back to “Schema”.
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Click File > Open > Meta Schema Extensions.