Editing comments works sorta. It doesn’t work with newlines, e.g.,
soft newline to here
hard newline to here
like those. Newlines/paragraphs can be added to new posts/comments/replies, but the Edit feature seems to ignore both soft [Shift]+[Enter] and hard [Enter] newlines. PITA. Makes it necessary to copy previous comments/replies, delete, and create new comments/replies.