18.1 At any time, a player may take stroke-and-distance by playing a ball from where the previous stroke was made.
But this does not apply to a ball to be played from where the previous stroke was made when the player announces that they are playing a provisional ball before making another stroke.
My County does many Rules presentations for clubs which are very popular. They have a number of qualified referees and mock-up golf courses with all the encumbrances one normally finds on a course.