Notification id_ref can be thought the pointer of the last notification of new CVE exploits. This is to be used by companies that want to use the API to manage the notifications of CVE exploits, from a push to a pull relationship.
The Id value is an internal reference value to its location in the store. The Save button is self-explanatory. The back button goes back to the list of companies to which you have access.
Internal value - you can ignore
This is the current pointer reference to the CVEs. For example, if this point was 1000, and there eas 1020 total current CVEs, that means there would be 10 CVEs that would be used to notify. Once notification is complete, then Latest id_ref would be 1020, and the previous id_ref would be 1000.
This is the previous CVE point reference
Number of CVEs that are enabled
Other CVEs tracked
The total number of CVEs that are enabled and disabled