If all folders are under one umbrella folder, you can just use a fetch to grab all articles (look in the docs for the depth parameter, and set it to 0 and include only article class objects). You cannot fetch and specifiy conditions on attribute values as a parameter. This needs to be done in a loop in your template where you can use something like
{cache-block key="highlights"}
{let $array_from_fetch = fetch(.....)}
{section name= ... loop=$array_from_fetch}
{section show=eq($:item.$node.datamap.attribute_name,"checked value") } {*show what you need*}
{/section}
{/section} {/cache-block}
Look in the contributed docs on how to get the parent node of this article and assemble the path to it and how to display the structure of variables (to find out the right syntax). You may also use $node.url_alias which shows the path in a pretty form. The sitemap template in design/standard/templates/node/view may also give some more hints
use the {cacheblock} for performance if you have a busy site and get the contributed clearcache.sh script to regularly clear the cache so things remain up to date
