There is no Option to set the Plugin Directory like in my Example.

Application/Resource/FrontController.php:

protected $_pluginDir; [...] case 'plugindirectory': $_pluginDir = $value; break;

            case 'plugins':
                foreach ((array) $value as $key=>$pluginClass) {
                    require_once $_pluginDir.'/'.$key.'.php';
                    $plugin = new $pluginClass();
                    $front->registerPlugin($plugin);
                }
                break;

[...]

*.ini resources.frontController.plugindirectory = APPLICATION_PATH "/plugins" resources.frontController.plugins.Acl = "Plugin_Acl"

Version 1.8b1