Adding Page Sources
To add a page data source (or page source), select the page in the Pages Pane, and then do the following.
Click the Add Source icon in the toolbar of the Page Sources Pane to display the Add Page Source dialog (screenshot below). Select the type of page source to add (listed below), specify the properties of this page source, and click Next. The various types of page sources are described in the next section, Types of Page Sources.