You can specify media attributes and values for Substrate Catalog entries.

1. In the Substrate Catalog window, select the entry that you want to edit, and click Edit or double-click the selected entry. The Substrate Catalog entry opens in the Edit window.
2. Enter information in the text fields, or click the arrow to display the list for that attribute. Choose the new attribute setting or enter the new attribute value.
3. Click OK to save the changes.