 cabinet buttons into keyboard key
   input to the PC.  The first step in setting up keyboard input is to
   enable the virtual keyboard device, via the <a href="JSONConfigRef.htm#keyboard"><tt>keyboard</tt></a>
   property.  This property is an object containing keyboard options,
   which current just consists of whether or not you want to enable the
   keyboard interface at all.
</p>
<pre>
   {
      keyboard: {
         enable: true,
      },
   }
</pre>
<p>
   Once the keyboard is enabled, you can set u