Redmine

I'm looking for a plugin that will allow a user to update an issue using date-time, summary/title (optional), and text, much like a journal or work log, but does not include hours worked like the time log. I would like the list of comments / journal entries to be an expandable sub-view to the primary issue view, located at the bottom of the main issue view, but before the issue "History" sub-view.

I've done a lot of searching and haven't found anything useful so far. I using Redmine 3.2.0. If you have something close to what I've described, I'd be interested. If not, can anyone point me to 1 or more existing plugins that I might cannibalize in order to create what I need.

Thanks in advance,
Ron