protected function askDefaultOptions(OutputInterface $output)
{
$this->initDefaultConfigNodes();
$dialog = $this->getDialog();
$sectionName = strtolower(trim($dialog->ask($output, '<question>Section Name (lowercase):</question>')));
$groupName = strtolower(trim($dialog->ask($output, '<question>Group Name (lowercase):</question>')));
$fieldName = strtolower(trim($dialog->ask($output, '<question>Field Name:</question>')));
$fieldValue = strtolower(trim($dialog->ask($output, '<question>Field Value:</question>')));
$this->configNodes['default_section_name'] = $sectionName;
$this->configNodes['default_group_name'] = $groupName;
$this->configNodes['default_field_name'] = $fieldName;
$this->configNodes['default_field_value'] = $fieldValue;
}