I have a desire to implement this feature .. hranicheski but not enough time:) maybe one of my projects – will require this functionality and, accordingly, it will be implemented .. there is hope that soon:) At least will bind to the group .. Online discussion groups can be arranged.
I have developed a comment function for this plugin, just modifying the HOME.php file in your themes/events/single/home.php and adding one page more called pagination_date for comments’ ajax pagination. I don’t know a lot, maybe it isn’t the most efficient or clean or simple but it works perfectly.
Each comment will appear in his event. The user can comment if he is in the event and the comments are integrated with wordpress users, of course. With avatar, name.
I can share it, but i can’t explain you how to do it and pass you all the code from here. You can contact to me in: [Email removed]