odoo_management/templates.xml

<?xml version="1.0" encoding="UTF-8"?>
<openerp>
    <data>
        <!-- odoo container action window -->
        <record id="odoo_container_action" model="ir.actions.act_window">
            <field name="name">Odoo Systems</field>
            <field name="type">ir.actions.act_window</field>
            <field name="res_model">odoo.container</field>
            <field name="view_mode">tree,form</field>
            <field name="view_type">form</field>
            <field name="help" type="html">
                <p class="oe_view_nocontent_create">
                    Cree una nueva sistema de Odoo
                </p>
            </field>
        </record>

        <!-- payment plan action window -->
        <record id="payment_plan_action" model="ir.actions.act_window">
            <field name="name">Payment Plans</field>
            <field name="type">ir.actions.act_window</field>
            <field name="res_model">payment.plan</field>
            <field name="view_mode">tree,form</field>
            <field name="view_type">form</field>
            <field name="help" type="html">
                <p class="oe_view_nocontent_create">
                    Cree un nuevo plan de pago para su contenedor
                </p>
            </field>
        </record>

        <!-- root menu -->
        <menuitem id="sysadmin_menu_root" name="Administración de Sistemas" />

        <!-- containers menu -->
        <menuitem id="containers_menu_categ" name="Contenedores" parent="sysadmin_menu_root" />
        <menuitem id="odoo_container_menu_act" name="Sistemas" parent="containers_menu_categ" action="odoo_container_action" />
        
        <!-- configuration menu  -->
        <menuitem id="configuration_menu_categ" name="Configuración" parent="sysadmin_menu_root" />
        <menuitem id="payment_plan_menu_act" name="Planes" parent="configuration_menu_categ" action="payment_plan_action" />
        <menuitem id="configuration_menu_act" name="Configuración" parent="configuration_menu_categ" action="payment_plan_action" />
    </data>
</openerp>