How to render automatically a document inside a section?

Hi,

    I would like to set a document to be the index_html inside a section.
    How can I do this?
    Is it possible to have this behavior for all sections?
    That is, when accessing a section, the user (normally anonymous
user) will see the last published document (always a Web Document)
rendered. The other documents in that section, if any, should be shown
on a side box.
     Also, which render scripts/methods are available? Where can I
find/edit them?

    Thanks

-- 
Mario O.de Menezes, Ph.D.     "Many are the plans in a man's heart, but
LinuxUser: #24626         is the Lord's purpose that prevails" Pv 19.21
                        http://www.ipen.br/~mario