How to add live chat plugin, google analytics code etc

1. Enter Admin dashboard and choose domains setting in system configurations:

2. Click on the required domain to add the plugin or google analytics:

3. Scroll down the page and insert the script into the Google Tracking code field, then click "update" button:

4. Google Analytics script looks like this:

<script>
(function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){
(i[r].q=i[r].q||[]).push(arguments)},i[r].l=1*new Date();a=s.createElement(o),
m=s.getElementsByTagName(o)[0];a.async=1;a.src=g;m.parentNode.insertBefore(a,m)
})(window,document,'script','https://www.google-analytics.com/analytics.js','ga');

ga('create', 'UA-XXXXX-Y', 'auto');
ga('send', 'pageview');
</script>

Replace 'UA-XXXXX-Y' with your Google tracking code to make it work.