gistfile1.erb

# How to re-use the menu partial for a submenu in Refinery CMS >= 0.9.8.5 and < 0.9.9.22

# header menu (main menu) which hides its children.
<%= render :partial => "/shared/menu",
             :locals => {
               :dom_id => 'menu',
               :css => 'menu',
               :collection => @menu_pages,
               :hide_children => true
             } -%>

# content menu (submenu) (extra_suffix cures double-up on cache)
<%= render :partial => '/shared/menu',
             :locals => {
               :dom_id => 'submenu',
               :css => 'menu',
               :roots => @menu_pages.reject{|p| p.parent_id != @page.root.id },
               :collection => @menu_pages.reject{|p| !p.self_and_ancestors.map(&:id).include?(@page.root.id) },
               :extra_suffix => 'submenu'
             } %>

http://refinerycms.com/guides/menu-presenter