<?xml version="1.0"?>
<data><xpath expr="//field[@name='product_tmpl_id']" position="after">
                    <field name="seller_ids" string="Vendor"/>
                </xpath>
                <xpath expr="//filter[@name='goods']" position="after">
                    <filter string="In the Order" name="products_in_order" domain="[('is_in_purchase_order', '=', True)]"/>
                </xpath>
            </data>