Prevent Agent Status Change If Another Agent Is Not Available

Agents are currently able to change their status no matter of the status of other agents meaning that it is possible for all agent from a department/group to be unavailable during operational hours.

It would be great if the system would allow us to put a block in place to say that agents are unable to change their status to unavailable during operational hours if there is not another available within the group/department to accept the chats meaning at least 1 agent from each department must be online at all times.