Hello everyone, I have a question. I’m facing an issue while developing a module for the POS application. I’m working on implementing "POS Delivery Charges," but in the pos_config_view file, I’m unable to pinpoint the correct template to modify. Here’s the code I'm working with: 
<odoo>

    <data>

        <record id="view_pos_config_form_inherit" model="ir.ui.view">

            <field name="name">pos.config.form.inherit</field>

            <field name="model">pos.config</field>

            <field name="inherit_id" ref="point_of_sale.ProductScreen"/>

            <field name="arch" type="xml">

                <xpath expr="//div[@class='pads border-top']" position="inside">

                    <setting string="Delivery Charges" help="Enable delivery charges for the PoS.">

                        <field name="enable_delivery_charges"/>

                    </setting>

                </xpath>

            </field>

        </record>

    </data>

</odoo>

I'm struggling to resolve the issue of adding a button to activate the desired functionality in the module. Can anyone assist?