Board Thread:Support Requests - Community Management/@comment-6191693-20130303173654/@comment-3387692-20130304060610

Sure thing. I'll go ahead a give an example at the page you linked to. Check out three things:
 * First, Category:Vehicles contains a page called V-2 Dreadnought.
 * Second, when followed that page redirects to the relevant section. Check this out to know how to make a redirect page in the future. Note that it's the redirect page that's technically in the category.
 * Third, the relevant section has a category box displaying the Vehicle category. Note that this is only a link to the category (as indicated by the : before Category) rather than an inclusion in the category.

And poof! Bear in mind that it's all a grand illusion, but hopefully it works for what you want.