app-odoo/app_pos_superbar/views/pos_order_views.xml

<odoo>
  <data>
      <!-- Order -->
    <record id="app_view_pos_order_filter" model="ir.ui.view">
        <field name="name">app.pos.order.list.select</field>
        <field name="model">pos.order</field>
        <field name="inherit_id" ref="point_of_sale.view_pos_order_filter"/>
        <field name="arch" type="xml">
            <xpath expr="//search">
                <searchpanel>
                    <field name="company_id" groups="base.group_multi_company" icon="fa-building"/>
                    <field name="state"/>
                </searchpanel>
            </xpath>
        </field>
    </record>

  </data>
</odoo>