From the 'Settings' tab of the 'Edit Page' interface you can create a menu link for the page, edit the page's URL aliases, set access restriction, see who authored the page, delete the page, and create a new page by copying the one you're viewing.
The recommended way to create a page link is to first create the page you want to link to. Once the page is created, create the menu link for it. It is best to create the menu link from within the page's Settings:
Enter the page edit mode
Go to the Settings tab
Go to the Menu settings tab
Check the 'Provide a menu link' checkbox
Choose the appropriate 'parent item' set the link's position in the menu hierarchy
When the page reloads, a link for the page will be in the menu structure. If you have set the page's menu link to appear at the second-level of the menu hierarchy or lower and you can't see the link in the menu, this may be because the style of menu only displays menu levels which are above the level of the page's link. See Navigation documentation for more information