Existing item tags can be edited by selecting a tag and clicking Actions→Edit Record or right-clicking on a tag and selecting Edit Record. The dialog box will appear and you can modify the item tag. Click Save to save any changes. Changes will be propagated to any items that the tag has been attached to.

Existing item tags can be deleted by selecting a tag and clicking Actions→Delete Record or right-clicking on a tag and selecting Delete Record. Deleting a tag will delete the tag from any items it was attached to in the catalog.