I've already seen an example with a nested table. But the problem is that you cannot put that nested table in a new ROW, since rows are "connected" only to the entities you iterate. But you can put a "sub-table" in a COLUMN. 2) I had an idea about your second question. You might add a property delete (with default value false) to your listed entities and connect it to a SelectBooleanCheckbox. And at the bottom of the table you have a button "Delete selected items". <h:dataTable var="item" value="#{listOfItems}" ... | | ...<h:column><h:selectBooleanCheckbox value="#{item.delete}" /></h:column>... | | </h:dataTable> | | <h:commandButton value="Delete selected items" action="#{actionBean.deleteSelected}" /> @Name("actionBean") | ... | public String deleteSelected() { | for (Item item: listOfItems) | if (item.isDelete()) | em.remove(item); | return null; | } That's the plain idea. I think it should work, but maybe you need to regard things like e.g. reloading the list after deletion. And when having problems with detached entities use em.remove(em.find(Item.class, item.getId())); to work on managed entities. View the original post : http://www.jboss.com/index.html?module=bb&op=viewtopic&p=3968600#... Reply to the post : http://www.jboss.com/index.html?module=bb&op=posting&mode=reply&a...