For adding new pages, follow these steps:
Note: It is assumed that you are in My Magazines.
Step1. Select the magazine you wish and click the Edit Settings button of your issue.
Step2. Go to the PAGES tab. Here you will be able to see all the pages of your issue. Move the mouse pointer over the green bubble icon where you wish to add the blank pages and click the Add Blank Pages button.
Step3. The recently added pages will appear in the page container in green color. Click the SAVE AND CLOSE button and wait a few seconds for the updating.