if you right click on a layer in the event editor and select "add sound" a popup windows allows you to choose from the defined sound definitions. However this list cannot be alphabetized or arranged in any way. The sound definitions in the list seem to be listed in order of creation, and there is no other way to view them. Having a radio button toggle to switch between "order created" and "alphabetized list" would be great.

Thanks!
-Matt E