Working with Pages
To add a page after the current one, bring up the Pages panel and click on the "+" to the left. Alternatively, bring up the Pages panel, and choose Insert Page in the pop-up menu.
To add a page to the end of the document, bring up the Pages panel. Open the pop-up menu by clicking on the gear wheel icon, and choose Add Page.
To add a copy of the current page, bring up the Pages panel and choose Duplicate Page in the pop-up menu.
To delete the current page, bring up the Pages panel and click the "-" to the left. Alternatively, bring up the Pages panel and choose Delete Page in the pop-up menu.
You can delete several selected pages.
To select several pages: