Если кому пригодится, то заголовок в Pages меняется так:
applications/cms/modules/front/database/record.php
Находим:
$title = ( isset( \IPS\Request::i()->page ) and \IPS\Request::i()->page > 1 ) ? \IPS\Member::loggedIn()->language()->addToStack( 'title_with_page_number', FALSE, array( 'sprintf' => array( $item->mapped('title') . ' - ' . $database->pageTitle(), \IPS\Request::i()->page ) ) ) : $item->mapped('title') . ' - ' . $database->pageTitle();
Меняем на:
$title = ( isset( \IPS\Request::i()->page ) and \IPS\Request::i()->page > 1 ) ? \IPS\Member::loggedIn()->language()->addToStack( 'title_with_page_number', FALSE, array( 'sprintf' => array( $item->mapped('title') . ' - ' . $database->pageTitle(), \IPS\Request::i()->page ) ) ) : $item->mapped('title');