ext_localconf.php

<?php
if (!defined ('TYPO3_MODE')) die ('Access denied.');
if (TYPO3_MODE == 'BE') {
	include_once(t3lib_extMgm::extPath('powermail') . 'lib/class.user_powermail_tx_powermail_fieldsetchoose.php');
}

$TYPO3_CONF_VARS['BE']['AJAX']['tx_powermail::controller']   = 'EXT:powermail/mod1/class.tx_powermail_ajax.php:tx_powermail_Ajax->ajaxController';

$confArr = unserialize($GLOBALS['TYPO3_CONF_VARS']['EXT']['extConf']['powermail']); // Get backend config
include_once(t3lib_extMgm::extPath('powermail') . 'lib/user_powermailOnCurrentPage.php'); // Conditions for JS including
include_once(t3lib_extMgm::extPath('powermail') . 'lib/user_powermail_misc.php'); // Some powermail userFunc (Conditions if any further step)
include_once(t3lib_extMgm::extPath('powermail') . 'lib/user_checkT3jquery.php'); // Conditions for Check if t3jquery is loaded or not

t3lib_extMgm::addUserTSConfig('options.saveDocNew.tx_powermail_fieldsets=1');
t3lib_extMgm::addUserTSConfig('options.saveDocNew.tx_powermail_fields=1');
t3lib_extMgm::addPItoST43($_EXTKEY,'pi1/class.tx_powermail_pi1.php','_pi1','CType',0);

$TYPO3_CONF_VARS['EXTCONF']['cms']['db_layout']['addTables']['tx_powermail_fieldsets'][0] = array(
	'fList' => 'uid,title',
	'icon' => TRUE,
);
$TYPO3_CONF_VARS['EXTCONF']['cms']['db_layout']['addTables']['tx_powermail_fields'][0] = array(
	'fList' => 'uid,title,name,type,fieldset',
	'icon' => TRUE,
);

?>