A new message is created every time an event is added to an event calendar. The new message contains the event's name (title) and descriptive text.

You can now specify a default label for these messages. At this time, all new "event messages" will be given the same label.

This allows you to provide some visual difference between messages from the event calendar and regular discussion group messages (especially if you create a label named "Event Calendar Message", or something equally self-explanatory).

You could also choose to hide all "event messages", by using a label that causes message to visible only to "editors".

By default, the label is "none" (that is, no label is applied to the messages), just like the original behaviour. You can change the default label in the structure editor, in your site's admin area.

If you have any questions, you know what to do: ask them here!

Seth