Datatables row Grouping Plugin - a way to have two-level grouping expandable/collapsible?

digits

Concerning the jquery datatables rowgrouping plugin: http://jquery-datatables-row-grouping.googlecode.com/svn/trunk/index.html , is it possible to have the two-level grouping and also have both groupings expandable / collapsible? I couldn't find anything on the site mentioning this.. wondering if any has tried it

GregP

I can't figure out what the original plugin even does. ;-)