This FAQ uses the power of Confluence's labels to provide a self-building FAQ. Essentially you can add a page anywhere within this space and tag it with one of the FAQ labels (such as faq_lcsim_general) and it will automatically appear in the FAQ. This allows an FAQ entry to appear in more than one category by just adding each of the FAQ labels to the page.
For example, notice that this FAQ entry has been specified with the label 'faq_lcsim_general'. This means that this page provides a general FAQ answer. This label then causes this entry to appear on both the main org.lcsim Frequently Asked Questions page as well as on the org.lcsim General FAQ.