How does one set the "crawler.use_sitemap_xml" key using the Funnelback Admin dashboard? I tried to add it to the collection configuration, but I'm not certain how and where to add it. I tried to add it using the Funnelback dashboard, but it didn't work. From the Funnelback Admin dashboard, I first selected the "Administer" tab, and then selected "Edit Collection Configuration". When I type in "crawler.use_sitemap_xml", however, the key does not autocomplete, so I cannot select it from the list of keys. What am I doing wrong?