Hoover,
the reason it is not in the list of contents/additional info section has Nothing to do with CB+
This data is piped in from the
Grand Comics Database (GCD) . The reason the data shows up here is that our lovely Head Admin, MarkWarner, added a bit of code so that the info would display in our comic listings to enhance the online reading experience.
here is a link to the GCD page:
https://www.comics.org/issue/10953/ contacting GCD would be best to correct this ommision