Hide departments from visitors in chat widget?

Is there a way to hide departments from visitors using the chat widget? I have custom code for routing and don't want visitors to see a selection of departments.

I found something in APIs that sounds like you can, but I don't see any such settings in SalesIQ admin:

"Do remember that for this API to work you would have to navigate through Settings-> Websites-> Website name -> Live Chat Widget -> Chat Window -> Configurations-> Choose a Specific Department to Assign Chats and choose the option "Allow visitor to select department" from the list of options displayed."

https://www.zoho.com/salesiq/help/developer-section/js-api-chat-department.html

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