Contribute Your Knowledge ~ Creating A New Namespace
It is strongly preferred that you follow the established Knowledge Base Editing ~ Active Sections Namespace structure. If you really believe you need a new Namespace, please discuss it with the administrators in the Web Site Usage forum first.
To create a new main section you should start by inserting a link to its index page into the main sidebar, e.g.
[[Newnamespace:Index|Title Text]]\\. Then click on this sidebar link and create the index page, which should contain links to at least the standard Namespace Pages.
Use the existing sections as a guide to the structure of the pages in the new section.