It is 2025 and I have found requests for this on your site going back to at least 2018. Unfortunately, this doesn't look like a priority for Constant Contact, but it IS a priority for many of your users.
... View more
Hi all. At this time, we do not have plans to allow for language customizations to Action Blocks, including the RSVP block. If we decide at a future date to include this in the editor, we will update the thread with a new status.
As a follow-up, the RSVP block in our cross-platform editor allows for more specific times to be selected, including :15 and :45.
... View more