In the Service Desk update 9113 you have added the ability to display a Desktop Central announcement from a Service Desk announcement which is great. However I accidentally just sent out a Desktop Central announcement to our whole domain 

I assumed (without paying much attention) that the announcement was just going to go to the person(s) I had entered into the To box. But instead it just goes to all computers on the domain with the Desktop Central agent installed.

It would be good if it was clearer that the "Display Announcement using Desktop Central" was going to send to the whole domain, or if you could control the behaviour a bit more (as you can in Desktop Central)