I like to be able to choose a specific group and adjust the volume level to each different speak in creating a  alarm. The right not you can only choose either speaker or general group and no choice of sound levels to each of the speakers.  I rather choose the speakers and volume of the for each of the alarms might even add a copy to another new alarm so you would not to customize each of the alarm again. I maybe you could create different groups with the specific speakers and column?