All of that is in the config.php for the plugin.
Text Formatted Code
// Centerblock configuration
$_PHPBBB_CONF['show_centerblock'] = true;
$_PHPBBB_CONF['centerblock_num_topics'] = 10;
$_PHPBBB_CONF['centerblock_subject_limit'] = 40;
$_PHPBBB_CONF['centerblock_homepage_only'] = true;
// Centerblock location
$_PHPBBB_CONF['centerblock_after_featured'] = true;
$_PHPBBB_CONF['centerblock_page_bottom'] = false;
