title: How to create menu and submenu with adf navigation pane
body: <p>I'm trying to create a complete menu with submenus using adf navigation pane. I already have an unbounded adf task flow and its adf menu model is correctily generated.</p>
  
  <p>But navigation pane only generates first navigation level but no lower. exist any way to implement a menu and submenu using adf navigation pane?</p>