Finch dans le plugin _task j'ais sa
<?php
// configuration parameters
if(empty($pathToExternals['pgrep'])) // May be path already defined?
{
$pathToExternals['pgrep'] = ''; // Something like /usr/bin/pgrep. If empty, will be found in PATH.
}
$maxConcurentTasks = 3;
$showTabAlways = 1; // if 1 then show tab 'Tasks' on the start always. If 0 - then only if background tasks exists
c'est ce que j'ai dans le task/conf.php