account-reconcile/account_mass_reconcile/views/res_config_view.xml

<?xml version="1.0" encoding="utf-8"?>
<odoo>

    <record id="view_account_config" model="ir.ui.view">
      <field name="name">account settings</field>
      <field name="model">res.config.settings</field>
      <field name="inherit_id" ref="account.res_config_settings_view_form"/>
      <field name="arch" type="xml">
        <xpath expr="//div[@id='invoicing_settings']" position="after">
          <h2>Reconciliation</h2>
          <div class="row mt16 o_settings_container" id="reconciliation_settings">
            <div class="col-xs-12 col-md-6 o_setting_box">
              <div class="o_setting_left_pane"/>
              <div class="o_setting_right_pane">
                <label string="Commit frequency"/>
                <div class="text-muted">
                  How often to commit when performing automatic reconciliation.
                  Leave zero to commit only at the end of the process.
                </div>
                <div class="content-group">
                  <field name="reconciliation_commit_every" class="oe_inline"/>
                </div>
              </div>
            </div>
          </div>
        </xpath>
      </field>
    </record>

</odoo>