If you want to add in Facebook Chat onto your site, please follow the steps below.
NOTE: You must have a Facebook Business page to do this.
Login to your CRM System
Click on Websites and then on your domain name
Now click on Global Settings on the left hand side menu
Now scroll down to the Facebook Chat section
For Show Facebook Chat switch it to YES
For Facebook Business Page URL, please paste in the business page profile url and click on save at the bottom
The Chat is now there!