The Catalog Browser is located at the bottom panel of the Spec and Catalog tabs. It displays everything from a catalog with customization and filtering functionality.
You can click on the expander to expand or collapse the Catalog Browser. Collapsing the Catalog Browser provides more visibility of the Spec and Catalog tabs for editing components.

The catalog tabs display all opened catalogs. The active catalog is highlighted with bold text.

The (+) button changes to the ellipsis button (…) button when there are too many open catalogs.

The components list displays all data of the active catalog, with functionality for customizing displayed properties and their sequence.

to expand a full list of catalog properties and choose which ones to display in the components list.
You can switch between the Family and Size tabs to display the components list by part families or part sizes.

The search function helps find parts with particular keywords quickly. The property filter helps filter parts with desired property values.
Enable the property filter by clicking the left side of the search bar. Clear all property filters by clicking the same button again. The property filter displays right under the property name in the components list. The available values of each property filter are updated to show only valid values with an active search.

Active search and filters are saved for each opened catalog and cleared when the catalog is closed. Switching the active catalog does not lose the search and filters; they are restored when the catalog is switched back to active.
The following options are displayed.