pos_menus_dashboard/views/menus.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>

        <menuitem id="report_dashboard_session_submenu" 
        parent="eiru_reporting_dashboard.report_reporting_dashboard_sale_menu" 
        name="Todas las sesiones" 
        action="eiru_reporting_dashboard_pos_session_action" />

        <menuitem id="report_dashboard_pos_order_submenu" 
        parent="eiru_reporting_dashboard.report_reporting_dashboard_sale_menu" 
        name="Pedidos" 
        action="eiru_reporting_dashboard_pos_order_action" />

    </data>
</openerp>