(1) In any action, the court may in its discretion direct the attorneys for the parties to appear before it for a conference to consider:

(2) The court shall make an order which recites the action taken at the conference, the amendments allowed to the pleadings, and the agreements made by the parties as to any of the matters considered, and which limits the issues for trial to those not disposed of by admissions or agreements of counsel; and such order when entered controls the subsequent course of the action, unless modified at or before the trial to prevent manifest injustice. The court in its discretion may establish by rule a pretrial calendar on which actions may be placed for consideration as above provided and may either confine the calendar to jury actions or to nonjury actions or extend it to all actions.