stock-rma/rma/wizards/stock_config_settings.xml

<?xml version="1.0"?>
<odoo>
    <record id="res_config_settings_view_form" model="ir.ui.view">
        <field name="name">stock.config.settings.rma</field>
        <field name="model">res.config.settings</field>
        <field name="inherit_id" ref="stock.res_config_settings_view_form"/>
        <field name="arch" type="xml">
            <div id="production_lot_info" position="after">
                <h2>Return Merchandise Authorization</h2>
                <div class="row mt16 o_settings_container">
                    <div class="col-xs-12 col-md-12 o_setting_box">
                        <div class="o_setting_right_pane">
                            <div class="content-group">
                                <div class="mt16">
                                    <field name="group_rma_delivery_address" class="o_light_label" widget="radio"/>
                                    <field name="group_rma_lines" widget="radio"/>
                                </div>
                            </div>
                        </div>
                    </div>
                </div>
            </div>
        </field>
    </record>
</odoo>