This message appears when you click the Edit button on the Tag List window without selecting any tags first. For tags to appear in the Tag List window, you must first tag some listings in the Terminal window. To select a tag in the Tag List window, you may click on it with the mouse. To select multiple tags, hold down the Ctrl key on your keyboard as you click on tags with your mouse. To select all tags on the Tag List window, click the Select All button.