Whilst we don't have a chat feature like you would normally expect to see in other video conferencing tools, you can always use our live Text feature to chat with the other user. In fact, in a way this is even better, as you can see the other user typing live in real time, without having to wait for them to complete the text box or click send.
To access the text tool, just click on the pen icon in the toolbar and cycle through until you land on the T icon. Then just click anywhere on the page to begin your message.