epri-vtn_custom/app/views/event_interfaces/standard/tab_panes/_response.html.erb

<div class="tab-pane" id="response">

  <%= form_for :event_interface, url: @update_path, method: 'put', html: { class: 'form form-horizontal' } do |f| %>

    <%= f.fields_for :event, @event_interface.event do |ff| %>

      <%= build_fieldset_solo(
          ff, "Response Required",
          [:response_required_type_id],
          @event_interface,
          @event_interface.event
        )
      %>

    <% end %>

  <% end %>

</div>