LiveChat Customization

Hi guys,

I’m giving support to a wordpress site and they use your plugin. They just asked me to disable the sound that livechat makes when a support person is online nad the livechat window opens.
I talked to support and gave me the next script:

Mute the Livechat sounds
II
Irena Itskova<[email protected]>
  Responder|
Ayer, 02:03 PM
Usted 
 I tried to mute the sounds from LiveChat for visitors and got this code from the support team to be inserted in stead of the old one:

<!-- Start of LiveChat (www.livechatinc.com) code -->
<script type="text/javascript">
  window.__lc = window.__lc || {};
  window.__lc.license = {$licence};
  var LC_API = LC_API || {};
  LC_API.on_after_load = function(){
    LC_API.disable_sounds();
  };

  (function() {
    var lc = document.createElement('script'); lc.type = 'text/javascript'; lc.async = true;
    lc.src = ('https:' == document.location.protocol ? 'https://' : 'https://') + 'cdn.livechatinc.com/staging/tracking.js';
    var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(lc, s);
  })();
</script>
<!-- End of LiveChat code -->

I would suggest you to add a control panel to be able to customize some variables like this one.
I already went to your TrackingCodeHelper.class.php file and added that LC_API variable and the on_after_load method to disable the sound