Here is the issue for that: https://jira.jboss.org/jira/browse/RF-1706
submitMode defines what type or request will be used when menu item is activated: "ajax" (like a4j:commandLink) or "server" (like h:commnadLink).
Thank you, Nick, for the prompt reply.
Would you mind asnwering my other post related to this issue titled "Catching the correct row index for row deletion in rich:dataTable " ?
You welcome :). Sure, I've answered there.