Re: Adding a function to the edit menu
Now I've taken a different approach on my site that should meet your need for the module to updated automatically. If you create a Blog in which to enter your news items, you can then create an RSS feed of the blog and include it in a user module. I also find the blog style to be a nice format for news items.
Now, RSS feeds are used traditionally so other websites to include your auto-updated material -but any RSS feed of your site's content can be used internally in wiki pages and in modules!
After creating the blog, create an RSS feed of the blog (under Admin/RSS modules). Now create a user module (or use an existing user module) and include
Tiki does a nice job of then giving you an automatically updated list of the titles of the last n number of news items (as defined by "max") right in your module! Now all you have to think about is posting your news items in the blog.
Bonus round: Rss feeds are also a nice way to include a little summary of image and file gallery uploads and Calendar events in modules or on pages around your site.