Option to deny manual assignment to agents

It was a request from some little and medium customers(3-4) and a topic of interest for leads.

It would be to remove the option to assign my chat to another user, if I am an agent working only with a specific assigned portfolio of customers.

Maybe a function that we can leave in the admin, prior coordination with the client on how they will work. Or in https://dash.callbell.eu/settings/team > Team Configuration