[HelpContents] > [HelpOnEditing]
h2. Creating Subpages
Subpages are groups of pages that share a common prefix, which itself is another page. While this is also possible with "classic" wiki, by using names like {{SomeTopicSubTopic}}, the use of {{SomeTopic/SubTopic}} allows better navigational support, and you can omit the common prefix when linking from the parent page to the child page.
Thus, by using "/" to concatenate several [WikiName]_'_'s, you can create arbitrarily deep hierarchies (within limits, especially the length of filenames on your system). In reality, subpages are normal pages that contain a "/" in their name, and thus they are stored besides all other pages in the file system. Subpages are a configurable feature, but they're on by default and it's recommended that you keep it that way, since the help pages themselves use this feature.
Links to sibling pages start with "{{../}}", for example ../SubPages (a link to this page).
h3. Example
{noformat}
* HelpOnEditing/SubPages
* [wiki:HelpOnEditing/SubPages This very page]
* [wiki:Self:HelpOnEditing/SubPages This very page]
* /ThirdLevel
* [wiki:/ThirdLevel A page below this one]
* ../SubPages
* ["../"] (anonymous parent link)
* [:../:free parent link]
{noformat}
h3. Display
* [HelpOnEditing SubPages]
* [This very page|HelpOnEditing SubPages]
* [This very page|HelpOnEditing SubPages]
* /ThirdLevel
* [A page below this one|HelpOnEditing SubPages ThirdLevel]
* ../SubPages
* {link-to:@parent}../{link-to} (anonymous parent link)
* {link-to:@parent}free parent link{link-to}
\\
(!) Please do all of us a favour and don't create the /ThirdLevel pages, it's just an example!