To create a new page click on the Pages button in the middle left of your screen.
Then click on the Add New button at the top.
It will open up options for Page, Popup, Folder, etc. Here, click on Page.
This will open up a window with the different designs available as a template for your new page. Everything is grouped into categories and you can preview each page design.
You can also click on Empty Page to start from scratch or Existing Page to select a page from your current website or template as a reference.
After selecting a template, all you need to do is add a Name, and URL for the page and select a Group (folder), which helps better organize your pages. Lastly, click Add to finish.