Saying a Probation Order can be changed does not mean it will be. There must be good reasons. Only a Judge, not a Probation Officer, can change the Court Order, and this requires a Court appearance. Adults can apply on their own, or through the Probation Officer, to have an order changed. Forms are available from the Probation Officer or the Court.
Probationers can retain a lawyer if they choose.
It is best to ask a Probation Officer or a lawyer about the details of having an order changed. Probationers do not need the permission of a Probation Officer to apply to have a Probation Order changed. Probation Officers will, however, be asked by the Court whether they agree with the change. The Court is less likely to approve the change if the Probation Officer does not agree. Conditions can be added to a Probation Order, but this does not happen very often.