This component is called TreeTable and there's no such component included in RF yet. You can test this one: http://kubek2k.w.ds14.agh.edu.pl/wiki/doku.php?id=programming:java:richfaces:treetable
Thanks for the response ... any proposals for implementing such a component as the TreeTable in the RF road map in the near future ... I am sure that such a component would be quite an useful extension to RF ...
Works on this components will be continued in new 4.x related branch(JSF 2 based). For more information on our plans visit our wiki.