(1) A party may question a witness in any way the party thinks fit, except as provided by this Chapter or as directed by the court.
(2) A court may, on its own motion or on the application of the party that called the witness, direct that the witness give evidence wholly or partly in narrative form.
(3) Such a direction may include directions about the way in which evidence is to be given in that form.
(4) Evidence may be given in the form of charts, summaries or other explanatory material if it appears to the court that the material would be likely to aid its comprehension of other evidence that has been given or is to be given.