This illustration shows the Links page under Administration. On the left are a set of default built-in link rules (Email, URL, Merge Request, and Task) and a New Link button for creating new link rules. For each link rule, you can specify a Name, select or deselect the Active check box, specify or edit a regular expression pattern, select or deselect the Ignore Case check box, and specify a URL. A Test node enables you to test the link pattern.