Play sound file that's outside the visible area of the screen

Let's say you have a sound you want to play on click but the icon is outside the visible area of the slide. When you start the presentation there is no possibility to click on the icon, you can't click what is not visible.

If you want to play the sound use your keyboard. Press tab key and press enter and the sound will play. If you want to stop the sound from playing repeat the process and it will stop.