The consultants section consists of two tabs: "Consultants" and "Blocked". In the tab "Consultants" there is a table of Chatix users who have access to your chat.
To block a consultant (i.e. to prohibit him to communicate with clients and manage settings), click on the basket icon in the consultant's row. Chatix will ask for confirmation to lock the consultant. After blocking a consultant, you can restore it in the Blocked tab.
If you want to change the name of the consultant, his email, avatar or assign him a new password, click on the pencil icon in the row of the desired employee.