Click the "Install Extensions" button
Search (on the Web) for onWebChat Joomla extension and install it.
Click Extensions → Plugins, search for onWebChat plugin and click on it.
Enable the plugin and click the "Options" tab.
Paste your Chat Id and click "Save & Close".
If you don't have an onWebChat Chat Id, please create an account here.
Congratulations! Your live chat widget is now available on your website.