The “Webhooks” section inside of our LiveChat app contains configuration for an older(v2) version of webhooks than the one mentioned by Łukasz(v3), for now those older webhooks remain available in the app for convenience of clients who are content with possibilities those older webhooks provide.
The new webhooks differ significantly and are set up in the Developer Console.
To learn more about the setup process for v3 webhooks, please take a look at the guidelines.