Deed Poll Australia Is It OK To Reverse The Order Of Your Christian Names Without Changing Your Name Officially By Deed Poll?

Is it OK to reverse the order of your Christian names without changing your name officially by deed poll? - deed poll australia

If your name is John Smith, Jeremy, for example, is that you can change Jeremy John Smith, for all purposes, including working and banking, etc., without formally change its name after the investigation of the action?
One reason for this may be changing the name to avoid confusion if someone in your field of work, which has precisely the same name.