You may create the catalog at the web version, too. That is at
Database > Productos > View / Edit
Click on the Catalog icon > Categories
Click on the categories you want to see on the catalog
Click on the catalog icon again to sort the items by
Select the fields you want to sort by
Click on the catalog icon again select Items
Select the fields to see on the items
Click on the catalog icon again select Header
Select the fields to see on the header
Click on the catalog icon again to view PDF Sample
Wait while the catalogo is created. You will see the catalgo in a new tab on the browser
The final Catalog