tryton/modules/account_dunning/view/dunning_form.xml

<?xml version="1.0"?>
<!-- this file is part of tryton.  the copyright file at the top level of
this repository contains the full copyright notices and license terms. -->
<form>
    <label name="line"/>
    <field name="line"/>
    <label name="company"/>
    <field name="company"/>
    <label name="procedure"/>
    <field name="procedure"/>
    <label name="level"/>
    <field name="level"/>

    <label name="date"/>
    <field name="date"/>
    <label name="age"/>
    <field name="age"/>

    <label name="amount"/>
    <group id="amounts" col="-1">
        <field name="amount"/>
        <field name="amount_second_currency"/>
    </group>
    <button name="reschedule" colspan="2"/>
    <label name="blocked"/>
    <field name="blocked"/>
    <label name="state"/>
    <field name="state"/>
</form>