Collapsible items / Group Nodes

[style-sheets]

Hi,

I'm new to Flexigrid & find it awesome, but I was wondering if I can
add grouped nodes a-la-Outlook, ie:

http://www.codeproject.com/KB/grid/OutlookGrid/OutlookGrid1.png

Groups don't *have to be* collapsible, I'm more interested in grouping
(although collapsible items would be nice)

So, does Flexigrid support that out of the box?

Thanks!
Gdhami.