Send Message update to an emailed/SMS communication

Most useful update for communicating with customers would be to be able to update the same group of customers with an update from the Messages/History tab.

When we have a network event, we go through the process of selecting the customers affected, but after a while or when the event is cleared, we need to update the same group of customers.

The most logical way to ensure that teh same group is messaged would be to simply click a button in the History tab and the system auto select the customer list to resend to them!

That way we dont waste time trying to ensure we select the same parameters/filters for the new message - in fact it could include the previous message sabiject possibly marked as
*** UPDATE *** or *** RESOLVED *** or something intelligent maybe?