product_barcode_generator/res_company_view.xml

<?xml version="1.0" encoding="utf-8"?>
<openerp>
    <data>
        
        <record id="view_company_ean_form" model="ir.ui.view">
            <field name="name">res.company.form</field>
            <field name="model">res.company</field>
            <field name="inherit_id" ref="base.view_company_form"/>
            <field name="arch" type="xml">
                <page string="Configuration" position="inside">
                    <newline/>
                    <group colspan="2" col="2">
                        <separator string="Ean Company code" colspan="2"/>
                        <field name="ean_sequence_id" domain="[('barcode_sequence', '=', 1)]"
                        context="{'default_name': name and 'EAN ' + name or 'EAN', 'default_barcode_sequence': 1}"/>
                    </group>
                </page>
            </field>
        </record>
        
    </data>
</openerp>