templates/form/field.php

<?php defined('ABSPATH') || die; ?>

<?php if ('rating_hebergements' === $context['field_name']) : ?>

<div style="border-top: 1px solid #000; margin: 10px 0; padding-top: 10px;">
    <h4 style="margin: 0; padding: 0;">This is a new section!</h4>
</div>

<?php endif; ?>

<div class="{{ class }}" data-field="{{ field_name }}">
    {{ label }}
    {{ field }}
    {{ errors }}
</div>