how to add enable_case_sensitive_super_attribute = true to Redshift?

As per the latest Redshift documentation, this is a valid parameter https://docs.aws.amazon.com/redshift/latest/dg/r_enable_case_sensitive_super_attribute.html#r_enable_case_sensitive_super_attribute-usage-notes

I tried adding it via CDK but get error Could not find parameter with name: enable_case_sensitive_super_attribute

I tried adding it via Console but it is not listed, and no option to add it. I've checked both default parameters and custom parameter group.

Can this parameter only be set for the current session as in https://docs.aws.amazon.com/redshift/latest/dg/cm_chap_ConfigurationRef.html#t_Modifying_the_default_settings ?