So, have you noticed those little question marks all over the place? That's context sensitive help. So if you click on the question mark next to drilldown, you get help on what happens if you put a check in the drilldown column.

Finally, there are settings. These are for listing the domains, time zone, and other such things about your site. Just like everything else in this site, it's all about giving you control.

Most importantly, it lets you control how LogJam recognizes search engine spiders (robots) and visitor search terms.