eiru_base_menu_tpv/menu_tpv.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
  <data>
    <!-- TPV dentro de menu operaciones -->
    <menuitem name="TPV" id="point_of_sale.menu_point_root" parent="eiru_base_menu.menu_operations" sequence="1"/>

    <!-- mover conf de tpv en menu caracteristicas tecnicas -->
    <menuitem name="TPV" id="point_of_sale.menu_point_config_product" parent="eiru_base_menu.menu_hide" sequence="80"/>

    <!-- menu dentro de registros -->
    <menuitem name="TPV" id="menu_tpv" parent="eiru_base_menu.menu_registrations" sequence="40"/>
          <menuitem name="Categorías de productos del TPV" id="point_of_sale.menu_product_pos_category" parent="menu_tpv" sequence="10"/>



  </data>
</openerp>