web/web_notify/views/res_users_demo.xml

<?xml version="1.0" encoding="utf-8"?>
<!-- Copyright 2018 Aitor Bouzas <aitor.bouzas@adaptivecity.com>
     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl). -->
<odoo>
    <record id="view_users_form_simple_modif_inherit" model="ir.ui.view">
        <field name="name">res.users.form.simple.view.modif.inherit</field>
        <field name="model">res.users</field>
        <field name="inherit_id" ref="base.view_users_form"/>
        <field name="arch" type="xml">
            <xpath expr="//notebook/page[1]" position="after">
                <page string="Test web notify" name="test_web_notify">
                    <group>
                        <group>
                            <button name="notify_info"
                                    type="object"
                                    string="Test info notification"
                                    class="oe_highlight"/>
                        </group>
                        <group>
                            <button name="notify_warning"
                                    type="object"
                                    string="Test warning notification"
                                    class="oe_highlight"/>
                        </group>
                    </group>
                </page>
            </xpath>
        </field>
    </record>
</odoo>