report search engine visits? (no replies)

Hi Friends,
Even though I have Piwik installed and working, there are still some things that are just over my head. So this may well be a newbie question. But I have searched the faq and forum, and didn't find an answer.

Anyway, it seems like the Search Engines widget is for reporting when a visitor's referring site is a search engine. Or in other words, the visitor got to my site via search engine. But the visitor is a person.

So far, I haven't figured out how to know when a search engine's spider/crawler/whatever is visiting my site. It seems like there should be a way to detect those, because my Simple Machines Forum has a mod for that. So I do get some very basic info about those visits -- the date they visit and how many pages they visit each time.. But I've been thinking it would be interesting to see how they navigate the site and to have some statistics about the search engine visits, such as how many per day, week, month, etc., average page hits per visit, or average hits per spider per visit, etc.

Is there already a way to track search engine spiders? If so, how? And if not, is it worth requesting as a new feature? I don't know, maybe most Piwik users are so advanced in their knowledge and skills that search engine spiders aren't worth mentioning. But it seems like if could be interesting to watch.

Thanks for your comments :)