<?xml version="1.0"?>
<form>
                <group>
                    <group>
                        <field name="product_ids" invisible="1"/>
                        <field name="product_tmpl_ids" invisible="1"/>
                        <field name="custom_quantity"/>
                        <field name="print_format" widget="radio"/>
                    </group>
                    <group>
                        <field name="extra_html" widget="html" attrs="{'invisible': [('print_format', '!=', '2x7xprice')]}"/>
                    </group>
                </group>
                <footer>
                    <button name="process" string="Confirm" type="object" class="btn-primary"/>
                    <button string="Discard" class="btn-secondary" special="cancel"/>
                </footer>
            </form>
        