menu.xml

<?xml version="1.0"?>
<!--
    Copyright (C) 2016-Today: La Louve (<http://www.lalouve.net/>)
    @author: Sylvain LE GAL (https://twitter.com/legalsylvain)
    License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
-->

<odoo>

    <menuitem id="menu_product_coefficient"
        name="Products Coefficients"
        parent="base.menu_sale_config"
        sequence="20"
        action="action_product_coefficient" />

    <menuitem id="menu_product_template_coefficient"
        name="Products (Coefficients View)"
        parent="base.menu_sales"
        sequence="20"
        action="action_product_template_coefficient_tree"
        groups="base.group_sale_manager"/>

</odoo>