BuddyPress.org

I am looking into creating some custom header links on my site and wanted them to link to the main activity wall with a corresponding filter selected. For example: click on groups link in the header ( no ajax ) this then loads the main activity page with the groups filter selected and displayed. I understand this is done through cookies to check which filter is selected upon page load. I looked through the _ajax.php file but not sure how to call the function correctly with what I am trying to accomplish.

I guess my question is. Is this possible or should I try and just duplicate the correct cookies for the filter ( which sounds like over kill to me )?

I hope this makes sense and possibly someone has an idea of where to start. Thanks!