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

    <record id="res_partner_form" model="ir.ui.view">
        <field name="name">res.partner.view.buttons</field>
        <field name="model">res.partner</field>
        <field name="inherit_id" ref="loyalty.res_partner_form"/>
        <field name="arch" type="xml">
            <button name="action_view_loyalty_cards" position="attributes">
                <attribute name="groups" separator="," add="sales_team.group_sale_salesman"/>
            </button>
        </field>
    </record>

</odoo>