Reference the custom catalog in the CMS master catalog

Now that you have your own custom plugin, with its own catalog, you must add that catalog to the CMS's master catalog so that the CMS will recognize your plugin and its associated DTDs.

  1. Navigate to Repository/system/catalogs.
  2. Check out and open master-catalog.xml.
  3. At the end of the catalog (but before the </catalog> tag), add the following: 
    <!-- COMPANY specializations -->
<nextCatalog catalog="../plugins/com.company.dtd/catalog.xml"/>
  4. Save, close, and check in master-catalog.xml.

Next, you need to verify that Oxygen is pointing to the master catalog.