Add new sound file for event
 

I would like to alter the sounds used by raising and lowering the periscopes. Is it possible to add one (or actually two) sounds to the list of files used?

So far i have identified the sound list in the sh.sdl and added two extra sounds, but cannot find out in what file to define where an "event" should use a specific sound (like menu.periscope.move that is the default sound)