Often it’s important enough creation of closed for not authorized users pages/sections. It can be client’s area or another closed page which contains information only for certain group of your visitors. It can be done by creating a member zones on your site.
To protect a page from common access you should mark the checkbox “Protected page” within the page properties. Since then only registered guests will have access to it through the sign-in procedure.
You can protect the whole pages section just in one click. This makes all pages within the section protected as well.