Currently, CFS Advanced is not available to any new customers and licenses are not sold separately and it is not currently included in existing WPS licenses.
CFS-Advance feature is being replaced by a more powerful feature which is also easier to use. The new feature will be included in WPS and NPS license for customers in future at no extra cost.
CFS technical documentation ( https://techdocs.broadcom.com/us/en/symantec-security-software/web-and-network-security/cloud-swg/help/cfs-about.html ) the CFS Advance license is not sold separately and in future it will be included in WPS licenses.