@Johg_Ananda great, glad you think this is a potential good implementation to achieve what you are looking for. I too would really like to see a ton more around comments.
And on a related note, I am very eager to see how Coda evolves the Column “types.” Another I’d really like to see is one for any related row across all of Coda, posted about it here (speaking of relating, haha!)
I’m sure there are some other really useful “types” of Columns, can’t wait to see what the Product Team comes up with! The current arrangement is very strong - no overkill, manageable via the right click menu, great UX. I think handling of Columns is a super strength of Coda, and I hope the Product Team thinks this idea is good enough to incorporate!