It doesn't look like there are any options to make the card code required. Submitting a card without the code will result in an error if the backend is configured to validate CVV, so it would make sense to at least require this field while the user is filling out the form rather than kick back an error after payment submission.
If this functionality is already available but undocumented, how can I specify this? If not, are there any plans to implement this in the future? What is the best way to submit this feature for consideration?