The Categories tab shows the list of service categories to which the Service Catalog Item applies.
NOTE: If no service category is chosen for a SC Item, this Item will be shown in the "All Items" and "Uncategorized" categories when you are browsing the Service Catalog. For details, see Managing service categories.
Click Add on the Categories tab,
and double-clickthe category that you want to add.
Select the service category and click Remove.