You can send operator message by:
- Be viewing the active screen.
- Click on the "speech bubble" icon in the top-right hand corner.
- This will now load the "Operator Messages" page.
- Click on the "New Message" button.
- Select the "User" (Operator) and enter the "Message".
- Once happy with the message simply click "Send".
You can also search for previous messages on the same page.