Writing
In edit mode page contains the following controls: Parent Page, Put Above and Alias inputs.
Parent page input allows you to specify which page of the existing ones should be a parent of the current page. This relationship will be displayed in the sidebar as if the page is nested into parent section.
If you don’t want any existing page to be a parent of your page, just select a Root option - this will allow you to create a root level page (which is a section of the sidebar itself).
With Put above input you can sort pages within section. Options contain all the pages of the same parent (and — for never mind). Just select a page which the current page should be inserted above and you’re done.
Alias field allows you to specify url path under which your page should be available. For example, entering /test will make the page have an address ${docs-domain}/test