It's easy! When you create or update an article or a file, you can assign and/or add new tags to it using the Meta Keywords/Tags field.
Click on the Add a tag link below the text editor.
You can add tags one at a time by hitting the Enter after typing each tag. Or you can add multiple tags at a time by separating each with a space as you type. You can join 2 or more words together in one tag by enclosing them in quotation marks.
To select a tag from your existing list (tags previously used in KBPublisher) click Choose from your tags and select the tags you want to use.
Note: Changes are not saved until you save an article.