trytonpsk-staff_payroll/view/mandatory_wage_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 cursor="party">
    <label name="wage_type"/>
    <field name="wage_type"/>
    <label name="party"/>
    <field name="party"/>
    <label name="fix_amount"/>
    <field name="fix_amount"/>
</form>