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

1. In the main Substrate Catalog window, select the entry that you want to edit, and click Edit or double-click the selected entry.

   Editable entries appear as white rows.

2. Enter information in the text fields, or click the arrow to display the drop-down menu for that attribute. Choose the new attribute setting or enter the new attribute value.

   All changes are automatically saved.