Sections in form with ckanext-scheming

dataset.json

{
"dataset_fields": [
      {
        "section": "Basic Metadata",
        "field_name": "title",
        "label": "Title",
        "...": "..."
      },
  
   {
        "section": "Data Privacy and Sharing",
        "section_subtitle": "Only applies to data that is uploaded to the portal",
        "name": "privacy_regulated",
        "...": "..."
      }
  ]
}

package_form.html

{% ckan_extends %}

{% block basic_fields %}

  {%- if not dataset_type -%}
    <p>
    dataset_type not passed to template. your version of CKAN
    might not be compatible with ckanext-scheming
    </p>
  {%- endif -%}
  {%- set schema = h.scheming_get_dataset_schema(dataset_type) -%}
  <!-- Custom -->
  {%- for field in schema.dataset_fields -%}
    {% if field.section %}
      <h2>{{ field.section }}</h2>
    {% endif %}
    {% if field.section_subtitle %}
      <p class="scheming-section-subtitle">{{ field.section_subtitle }}</p>
    {% endif %}
   <!-- End Custom -->
    {%- if field.form_snippet is not none -%}
      {%- snippet 'scheming/snippets/form_field.html',
        field=field, data=data, errors=errors, licenses=c.licenses,
        entity_type='dataset', object_type=dataset_type -%}
    {%- endif -%}
  {%- endfor -%}
  {%- if 'resource_fields' not in schema -%}
    <!-- force controller to skip resource-editing step for this type -->
    <input type="hidden" name="_ckan_phase" value="" />
  {%- endif -%}
  {% resource 'gdx/privacy-fields.js' %}
{% endblock %}


{% block metadata_fields %}
    {% block package_metadata_fields_custom %}
        {% block custom_fields %}
            <h2>Custom Fields</h2>
            {% snippet 'snippets/custom_form_fields.html', extras=data.extras, errors=errors, limit=3 %}
        {% endblock %}
    {% endblock %}
{% endblock %}