In some cases you may want to create and use a master page whose elements are almost identical to an existing master page. Rather than recreate the identical elements on a new master page, you can duplicate the existing master page, and then change or add the elements you want on the duplicated master page. Newer versions Office 2007 On the View menu, click Master Page . In the Master Page tab, click Duplicate . In the Duplicate Master Page dialog box, do either of the following: In the Page ID (1 character) box, type a single-character identifier for your new master page. This can be any single Unicode character. ...