pos/barcodes_generate/security/res_groups.xml

<?xml version="1.0" encoding="UTF-8"?>
<!--
Copyright (C) 2016-Today: GRAP (http://www.grap.coop)
Copyright (C) 2016-Today GRAP (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>

    <record id="generate_product_barcode" model="res.groups">
        <field name="name">Generate Barcodes for Products</field>
        <field name="category_id" ref="base.module_category_hidden" />
    </record>

    <record id="generate_partner_barcode" model="res.groups">
        <field name="name">Generate Barcodes for Partners</field>
        <field name="category_id" ref="base.module_category_hidden" />
    </record>

</odoo>