AAAAh... now I believe I get what you're saying.
You want to have the pages, but they are hidden completely.
Scroll further down the page, and you'll see a hidden and disabled checkbox - click the hidden - it allows you to hyperlink to a page without it being displayed at all on the menu. You can access these pages through the Admin/pages page if you need to move them.
Now, without wanting to throw a spanner in the works, I hear the help module, renamed - eManual - will be in beta version soon - and that means you can build a knowledge base from a single page. If you got to the help page on DotNetNuke - you'll see the format - that might be something work waiting for.. It will be released soon. And it works from one page. That would be much easier to work with don't you think?
I've been testing the beta version - and I'm excited about what it can offer.
Also, have you looked at the wiki module - http://www.wikipedia.com - that's the concept of how it works.. These are just suggestions to help you streamline the development of your site and to make it easier to manage and grow in the long run.
Hope this gives you some answers and thanks for trying to explain.. it's Saturday morning here! 
Nina Meiers