Registered and nonregistered attorneys may both be entered as attorneys of record on a case. In the event of an attorney of record who is not registered for trial E-Filing, appellate E-Filing, trial E-Service, appellate E-Service, or appellate E-Notice, § 2-101 et seq. shall control for that attorney. Section 2-201 et seq. shall control only in instances where the attorney is registered for the relevant electronic system noted above.