Keyboard and mouse configuration
In this window, the keys with which the interface operates are configured. It also
configures the way to add the credits with the mouse.
To change the key of a function, we click on the text box and then press the
desired key.
Also select the click with which the credits will be added, either the right or the left.
Finally, you can activate the option to delete a song or video that is being
executed. This is done with the left mouse click. When activating this option, the
credits can only be added with the right click. It is also mandatory to put a
password, so that only local staff can delete the songs.