$organisation = entity_ui_form_submit_build_entity('organisation',$organisation, $form, $form_state);
$organisation->save();
drupal_set_message(t('The organisation: @name has been saved.', array('@name' => $organisation->name)));
$form_state['redirect'] = 'admin/organisations';

// Return the current form
  $function = $form_state['storage']['step'];
  $form = $function($form, $form_state, $organisation);
  return $form;

$organisation = entity_ui_form_submit_build_entity('organisation',$organisation, $form, $form_state);
$organisation->save();

function organisation_form($form, &$form_state, $organisation) {
  if ($form_state['rebuild']) {
      $form_state['input'] = array();
  }
  if (empty($form_state['storage'])) {
// No step has been set so start with the first.
   $form_state['storage'] = array(
      'step' => 'organisation_first_form',
   );
  }
// Return the current form
  $function = $form_state['storage']['step'];
  $form = $function($form, $form_state, $organisation);
  return $form;
}

function organisation_form_submit($form, &$form_state) {
 $values = $form_state['values'];
 if (isset($values['back']) && $values['op'] == $values['back']) {
   // Moving back in form.
   $step = $form_state['storage']['step'];
   // Call current step submit handler if it exists to unset step form data.
   if (function_exists($step . '_submit')) {
     $function = $step . '_submit';
     $function($form, $form_state);
   }
// Remove the last saved step so we use it next.
$last_step = array_pop($form_state['storage']['steps']);
$form_state['storage']['step'] = $last_step;
  }
  else {
   // Record step.
   $step = $form_state['storage']['step'];
   $form_state['storage']['steps'][] = $step;
   // Call step submit handler if it exists.
   if (function_exists($step . '_submit')) {
      $function = $step . '_submit';
      $function($form, $form_state);
   }
  }
return;
}

function organisation_second_form($form, $form_state, $organisation) {
  $form['#parents'] = array();
  // These variables are needed to build field forms.
  $entity_type = 'organisation'; // Substitute with any entity type.
  $bundle_name = 'organisation'; // Substitute with the entity's bundle.
  $entity = $organisation;
  $langcode = LANGUAGE_NONE; // Substitute as appropriate.

  $field_name = 'hub_position_activities';
  $items = field_get_items($entity_type, $entity, $field_name);
  $field = field_info_field($field_name);
  $instance = field_info_instance($entity_type, $field_name, $bundle_name);
  $field_form = field_default_form($entity_type, $entity, $field, $instance, $langcode, $items, $form, $form_state);
  $form += $field_form;

  $field_name = 'hub_market';
  $items = field_get_items($entity_type, $entity, $field_name);
  $field = field_info_field($field_name);
  $instance = field_info_instance($entity_type, $field_name, $bundle_name);
  $field_form = field_default_form($entity_type, $entity, $field, $instance, $langcode, $items, $form, $form_state);
  $form += $field_form;

  $form['back'] = array(
    '#type' => 'submit',
    '#value' => t('Back'),
    '#limit_validation_errors' => array(),
    '#submit' => array('organisation_second_form_submit'),
    '#weight' => 499,
  );
  $form['submit'] = array(
    '#type' => 'submit',
    '#value' => t('Next'),
    '#weight' => 500,
  );
  return $form;
}

function organisation_second_form_submit($form, &$form_state) {
  $values = $form_state['values'];
  $form_state['rebuild'] = TRUE;
  if (isset($values['back']) && $values['op'] == $values['back']) {
    $input = $form_state['input'];
    // The user clicked the back button, save values that were input
    if (isset($input['hub_position_activities'])) {
      $form_state['storage']['hub_position_activities'] = $input['hub_position_activities'];
    }
    if (isset($input['hub_market'])) {
      $form_state['storage']['hub_market'] = $input['hub_market'];
    }
    $form_state['storage']['step'] = 'organisation_first_form';
  }
  else {
    $form_state['storage']['hub_position_activities'] = $values['hub_position_activities'];
    $form_state['storage']['hub_market'] = $values['hub_market'];
    $organisation = entity_ui_form_submit_build_entity($form, $form_state);
    $organisation->save();
    $form_state['storage']['step'] = 'organisation_third_form';
  }
}

function organisation_last_form_submit($form, &$form_state) {
  $values = $form_state['values'];


  if (isset($values['back']) && $values['op'] == $values['back']) {
    $form_state['storage']['step'] = 'organisation_second_form';
    $form_state['rebuild'] = TRUE;
  }
  else {
    $form_state['storage']['hub_equipment_measurement'] = $values['hub_equipment_measurement'];
    $form_state['storage']['hub_equipment_software'] = $values['hub_equipment_software'];
    $organisation = entity_ui_form_submit_build_entity($form, $form_state);
    $organisation->save();
    drupal_set_message(t('The organisation: @name has been saved.', array('@name' => $organisation->name)));
    $form_state['redirect'] = 'admin/organisations';
  }
}