Remove the copyright notice Powered by
2) open settings
Initiate chat with website customers in Live Chat
and specify the seconds on expiration of which the chat window will automatically pop-up on the bottom of the website. 
Text Change in Live Chat 
Where can I change the default "Hello! How can I help you?" into something I want? 
Mobile Chat Apps for IOS and Android
in Google Play market or AppleStore.
White-list Live Chat host to 'mod_security' for an appropriate work of chat
The Live Chat admin panel returns a notification that I use ModSecurity service and have to white-list your site. How can I do it?
Live Chat extension for Chrome browser and desktop notifications
Setup particular operator for specific website 
Yes, it is possible to setup a particular chat operator for a particular website. Follow the guidance below: 
Setup Chatbox position (right / left) from Chat plugin in Wordpress dashboard
- Login into Wordpress dashboard of your website; 
Setup Live Chatbox width from Wordpress dashboard 
and specify the one you need. 
Setup Chat Status Indicator in Live Chat 
- login into WordPress dashboard of your website; 
Delete chats from Archive in Live Chat
I would like to delete messages from my Archive. How can I do it? 
Delete account / operator / admin in Live Chat
in front of the user you want to delete