Hide chat campaign widget during closed hours

One possible solution, you can placed a condition widget in your chat flow, and use your business hours/closure set to route when closed - to a send media widget with a "we are closed message".   In the send media widget you could also instruct them to send an email and either provide the email address or a mailto: link.    

This does not remove your chat button but it does provide a way to control during business hours and closed hours.

Thank you. Yes, it is a poor substitute 😞 , but a last resort.

The campaign management does not allow you to 'OR' multiple campaigns. If there are multiple channels in a  single campaign, all of the channels show up.