Hi,

You insert your custom code into settings form by using data-key in x path, try the code below

<?xml version="1.0" encoding="utf-8"?>
<odoo>
    <data>
        <record id="view_res_config_settings_inherited" model="ir.ui.view">
            <field name="name">view.res.config.settings.inherited</field>
            <field name="model">res.config.settings</field>
            <field name="inherit_id" ref="hr_attendance.res_config_settings_view_form"/>
            <field name="arch" type="xml">
                <xpath expr="//div[@data-key='hr_attendance']//div[@class='o_setting_right_pane']"
                       position="after">
                    <span>Your custom code</span>
                </xpath>
            </field>
        </record>
    </data>
</odoo>

Regards