ThinkScript alert chimes without the message?

I am using the following code to produce an audible alert:

Alert(High>High[1], “Test Alert”, Alert.Tick, Sound.Chimes);

This produces a chime each tick the the condition is satisfied – exactly what I want – but it also produces a text message in the “message center” at the same time, which I do not want.  As the message is generated each tick, the string of essentially identical messages can be quite long.  I want the chimes every tick as I am often away from my computer and want the multiple chimes to get my attention.

Is there an alert command I can use that will produce the chimes without the message?  Alternatively can I adjust a setting in the message center that will ignore the alert messages?

Thank you!

Carl