<?xml version="1.0"?>
<form string="Ticket">
                <sheet>
                    <group>
                        <group>
                            <field name="name"/>
                            <field name="description"/>
                            <field name="start_sale_datetime"/>
                            <field name="end_sale_datetime"/>
                        </group><group>
                            <field name="seats_max"/>
                            <field name="seats_reserved"/>
                        </group>
                    </group>
                </sheet>
            </form>
        