<?xml version="1.0" encoding="utf-8"?>
<odoo>
  <data>
    <menuitem
        id="orbeon_base_menu"
        name="Orbeon"
        parent="base.menu_custom"
        sequence="101" 
        />

    <menuitem
        id="orbeon_server_menu"
        name="Server"
        parent="orbeon_base_menu"
        action="orbeon_server_action"
        sequence="20"
        />

    <menuitem
        id="orbeon_builder_menu"
        name="Builder Forms"
        parent="orbeon_base_menu"
        action="orbeon_builder_form_action"
        sequence="30"
        />

    <menuitem
        id="orbeon_runner_menu"
        name="Runner Forms"
        parent="orbeon_base_menu"
        action="orbeon_runner_form_action"
        sequence="40"
        />
  </data>
</odoo>

<?xml version="1.0" encoding="utf-8"?>
<odoo>
  <data>
    <menuitem
        id="orbeon_base_menu"
        name="Orbeon"
        sequence="101" 
        />

    <menuitem
        id="orbeon_server_menu"
        name="Server"
        parent="orbeon_base_menu"
        action="orbeon_server_action"
        sequence="20"
        />

    <menuitem
        id="orbeon_builder_menu"
        name="Builder Forms"
        parent="orbeon_base_menu"
        action="orbeon_builder_form_action"
        sequence="30"
        />

    <menuitem
        id="orbeon_runner_menu"
        name="Runner Forms"
        parent="orbeon_base_menu"
        action="orbeon_runner_form_action"
        sequence="40"
        />
  </data>
</odoo>

Put the Orbeon menu under root (menus).
Put the Orbeon menu under root (menus).
