These tabs allow you to perform actions or view pages that are related to the current article. The page tabs are displayed at the top of the article to the right of the site logo (if using the default MonoBook skin). The function and use of the default special pages can be found in the special pages section of this manual. These special pages are commonly generated when the special page is loaded rather than being stored in the wiki database. For example, a list of users registered with the wiki, statistics about the wiki such as the number of pages and number of page edits, system logs, a list of orphaned pages, and so on. In MediaWiki terminology, a special page is one that presents information about the Wiki and/or allows access to administration activities for the wiki. The “special pages” tool lists the MediaWiki special pages.This is not displayed if file uploading has been disabled or not enabled in the first place. Uploading files, viewing files on the server, including them in wiki pages and managing the uploaded files is discussed in the managing files section of this manual. Uploaded files can be linked from or embedded in wiki pages. “Upload file” displays a special page that allows logged-in users to upload images and other files to the wiki.The "Hide minor edits" option that can be set in the user preferences applies, among other things, to “related changes”. Recent changes to all relevant template pages are included in the resulting page list. The “related changes” tool lists all recent changes in the pages linked to from the current page.The “what links here” information can also be useful when you are refactoring wiki pages and need to check whether links to this page are still relevant after changes in the current page. This is helpful when you are looking for pages of related information. “What links here” takes you to a special page that lists the pages on this wiki which contain a link to the current page.The tools contains a selection of links which change depending on what type of page you are viewing. For more information see Manual:Interface/Sidebar. You can find a list of such pages via Special:Allmessages. to change the automatic link to the Main Page you would change MediaWiki:Mainpage (target page) and MediaWiki:Mainpage-description (displayed text). Some entries call for separate MediaWiki: pages, e.g. Tip for wiki admins: You can customize the navigation links by editing MediaWiki:Sidebar.