Unless administration under Part 5 [Sections 62-3-501 et seq.] is involved, (1) each proceeding before the court is independent of any other proceeding involving the same estate; (2) petitions for formal orders of the court may combine various requests for relief in a single proceeding if the orders sought may be finally granted without delay, but, except as required for proceedings which are particularly described by other sections of this article [Sections 62-3-101 et seq.], no petition is defective because it fails to embrace all matters which might then be the subject of a final order; (3) proceedings for probate of wills or adjudications of no will may be combined with proceedings for appointment of personal representatives; and (4) a proceeding for appointment of a personal representative is concluded by an order making or declining the appointment.