The first step is to get a new chat script. Examples of compatible chat scripts are: Zopim, Livechat and Olark. To use the chat integration, it’s needed to choose the better service for the case, then register and copy the script provided. (Don’t know how to get the script? Click here).
In the "General Settings" session, enter the code obtained, and then press "Save Changes".
After saving, the Chat Integration tool will open a chat box on the site for users to send messages on all public pages.