To add a new page that uses the current layout, click Edit > Add Page Using Current Layout, or right-click a page in the Project Bin, and then select this option from the context menu. You can also drag a new page to a different location in the project. For example, you might want to move the new page somewhere else in the project.
To remove a page, click Edit > Delete Current Page, or right-click the page, and then select this option from the context menu.