Amending signed RA to include additional guests

I was under the impression...

Within the "legal" section of a booking, when the host selects "Request eSignature" and subsequently the guest goes to resign RA, it provides the guest (name for each guest) fields to be updated, as so with initial booking RA eSignature.

...not so!

It only provides the path for resigning the RA, as is. Am I missing something, or does this need to be a (basic) feature added?