How to add Google Search Appliance to recognized search engines for keyword tracking? :)

I’m using piwik on an internal site that is indexed by a Google Search Appliance (GSA). This should look quite similar to a normal google search in terms of referrer. How can I have searches from our LAN GSA show up in Piwik just like external google searches would so that I can track the keywords being used?

An example referrer as currently logged by piwik (just as a normal referring site) looks like:

googll is the URL for the search appliance and q= is the query string…

Apologies again, missed this FAQ the first time around:

"A search engine is counted as a website referer. How can I add the search engine to Piwik?"