app-odoo/app_product_superbar/views/product_template_views.xml

<odoo>
  <data>
      <!-- Product -->
    <record id="app_product_template_search_view" model="ir.ui.view">
        <field name="name">app.product.template.search</field>
        <field name="model">product.template</field>
        <field name="inherit_id" ref="product.product_template_search_view"/>
        <field name="arch" type="xml">
            <xpath expr="//search">
                <searchpanel view_types="list,kanban,pivot,graph,search" class="app_test">
                    <field name="categ_id" text="name" enable_counters="1" limit="1000"/>
                    <field name="type"/>
	                <field name="product_tag_ids" select="multi"/>
                </searchpanel>
            </xpath>
        </field>
    </record>
  </data>
</odoo>