@staticmethod
def clean_option_variable(option_variable, inverse=False):
    """
        Convert option variable between UI and python format
        :param option_variable: option available for edit user settings UI
        :type option_variable: str
        :param inverse: True to return python format, False to return UI format
        :type inverse: bool
        :return: formatted option variable
        :rtype: str
        """
    if inverse:
        return option_variable.upper().replace(' ', '_')
    else:
        return option_variable.replace('_', ' ').title().replace('Dvh', 'DVH'
            ).replace('Iqr', 'IQR')
