zentao/extension/max/admin/ext/config/zentaomax.php

<?php
$config->admin->menuGroup['productflow'][] = 'deliverable';
$config->admin->menuGroup['productflow'][] = 'tree';
$config->admin->menuGroup['projectflow'][] = 'deliverable';
$config->admin->menuGroup['projectflow'][] = 'auditcl';
$config->admin->menuGroup['projectflow'][] = 'tree';
$config->admin->menuGroup['projectflow'][] = 'process';
$config->admin->menuGroup['projectflow'][] = 'activity';
$config->admin->menuGroup['projectflow'][] = 'review';
$config->admin->menuGroup['projectflow'][] = 'reviewcl';
$config->admin->menuGroup['projectflow'][] = 'workflowgroup|setmodule';