To add a Catalog Group to a catalog item:
Either click the New button on the Catalog Groups window or right-click anywhere within the Catalog Groups window and select New. The Add Catalog Group window is displayed.

Select the desired Catalog Group from the drop-down list.
Click Add to add the selected Catalog Group to the catalog item. The Add Catalog Group window is closed and the Catalog Groups window is updated to include the Catalog Group you just added.
Note
If the selected Catalog Group is already assigned to the catalog item, a warning is displayed.

Click OK to return to the Add Catalog Group window and select another Catalog Group.