There are two ways to do this.

If you want to create a blank webpage and start from scratch you simply type a new page name in the box provided on the toolbar, then click 'New' and a blank webpage will open.

If you like a page you've created and want to use it as a template for another page, you type the new pagename into the box provided on the toolbar, then click 'Save As' and you'll then be working in a copy of the previous page you made.

Remember that the web address for new pages is http://you-user-name.mydnd.com/new-page-name.