The goal if this feature is to be able to send an event (like invisible message with payload) from agent during chat conversation.

This event should be catch with addEventListener browser Javacript command and get object as parameter like:

window.addEventListener("lcw:onReceivedEvent", function (event) {...})

with event = { type : "eventName", payload : json object }

With this feature. it will be possible to extend client side capability to call website API for instance.

One of my customer want to deploy LCW in there eCommerce website and allow CSR to add product of website in customer cart.