Allow switching from Email to Chat response type

I want the ability to change the response type from 'Email' to 'Chat' in the support module, even if the conversation originated as an email. This is important because when a user replies to an email via the messenger widget, I am currently locked into replying via email, which causes them to receive both an email and a messenger notification. I need the option to turn off channel locking to prevent unnecessary dual notifications and manage the conversation purely as a chat when the user is active in the widget.