DND {% dnd %}
{% dnd_section %} is a top-level row, and must be nested within a {% dnd_area %}
{% dnd_area %}
{% dnd_section %} <!-- is a top-level row -->
{% end_dnd_section %}
{% end_dnd_area %}
{% dnd_column %} is a vertical structural building block that occupies one or more layout columns defined by its parent row. It must be nested within a {% dnd_area %} tag
{% dnd_area %}
{% dnd_area %
{% end_dnd_area %
{% end_dnd_area %}
{% dnd_column %} Can also contain dnd_row.