Unable to edit specific EOT reminder emails

Related to some of the other posts regarding EOT reminder emails… Over a year ago I setup 4 unique email messages. Currently, I can not edit any of the 4 messages. Good news is that the renewal messages are still being sent. I believe under the menu option for “Stripe Options” --> “EOT Renewal / Reminder Emails (s)”, An editable field under “Customize Email for Day:” is missing where I can specify which mail I wish to change. Please advise if there a different way to maintain these reminder messages.