[Plugin: Attending Users] Request: Add list to all new posts in a category?

Hi.
Would it be possible to add the function to have a list automaticly added to all new posts in a certain category. I have a category named “events” and would like it to be completely automatic, so the user wont be able to deselect the attending list.
With my fairly poor knowlegde of php coding, it doesn’t seem to big a change in code.

If not wanted in the official code, anyway someone could tell what to re-code my self.

Thanks in advance.

Best Regards

Christian

http://wordpress.org/extend/plugins/attending-users/