pos/pos_order_mgmt/views/view_pos_config.xml

<?xml version="1.0" encoding="UTF-8"?>
<!-- Copyright 2018 GRAP - Sylvain LE GAL
     Copyright 2018 Tecnativa - David Vidal
     Copyright 2019 Druidoo - Iván Todorovich
     Copyright 2019 Level Prime Srl - Roberto Fichera
     License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
-->
<odoo>

    <record id="view_pos_config_form" model="ir.ui.view">
        <field name="model">pos.config</field>
        <field name="inherit_id" ref="point_of_sale.view_pos_config_form"/>
        <field name="arch" type="xml">
            <group name="receipt" position="inside">
                <field name="iface_order_mgmt"/>
            </group>
            <group name="receipt" position="after">
                <group string="Order Management" name="order_management"
                       attrs="{'invisible': [('iface_order_mgmt', '=', False)]}">
                    <group>
                        <field name="iface_reprint_done_order"/>
                        <field name="iface_return_done_order"/>
                        <field name="iface_copy_done_order"/>
                        <field name="iface_load_done_order_max_qty"/>
                    </group>
                </group>
            </group>
        </field>
    </record>

</odoo>