[img]http://www.divshare.com/img/6575546-9d5.png[/img]
I think it's programmable with the current RF 3.3.0 components, but is there any particular component for this purpose? If no, is there any plan for it?
RFC for TreeTable component is here and it's not implemented yet: https://jira.jboss.org/jira/browse/RF-1053. You can vote for it here: http://labs.jboss.com/wiki/RichFacesFuture