Add Sub Page
First we need to create parent page for all the sup pages. Right Click on Content and select Create from the drop down.
2. Then select Sub Pages from sub drop down.
3. Enter your desire name for page and select image for header background of all sub pages. Then click on Save and Publish button at bottom of page.
4. Now select Blank Page from create dropdown.
5. Enter your page name and select Single Master Template from Template property under properties tab and click on Save and Publish button at bottom of page.
6. Your created page will be shown under parent page. Add your content and click on Save and Publish button at bottom of page.