protected function _chooseCurrentAction()
    {
        /** @var Setup $oSetup */
        $oSetup = $this->getInstance("Setup");
        $iCurrStep = $oSetup->getCurrentStep();

        $sName = null;
        foreach ($oSetup->getSteps() as $sStepName => $sStepId) {
            if ($sStepId == $iCurrStep) {
                $sActionName = str_ireplace("step_", "", $sStepName);
                $sName = str_replace("_", "", $sActionName);
                break;
            }
        }

        return $sName;
    }