Resources/views/Notification/widget/owner.html.twig
<div class="widget-content">
<div class="row-fluid form-horizontal">
<div class="responsive-block">
{{ form_row(form.owner, { label: 'ds.notification.owner.label' }) }}
</div>
</div>
{% for widget in ds_widgets({ position: 'ds_notification_notification_form_owner', context: context }, { form: form }) %}
{{ widget.content|raw }}
{% endfor %}
</div>