New pages can be created through the use of page templates. To create a new page, select Create a New Page from the sidebar. You will be prompted to enter a label and select a template. Optionally, you can choose a folder to create the page in.
You can also duplicate existing pages by selecting Duplicate from the pages menu. This will make an exact duplicate of the page you’ve selected, so make sure you change the page properties afterwards.
You can disable these features to prevent clients from creating new pages.