(a)Parties' briefs (1) Each appellant must serve and file an appellant's opening brief. (2) Each respondent must serve and file a respondent's brief. (3) Each appellant may serve and file a reply brief. (4) No other brief may be filed except with the permission of the presiding justice, unless it qualifies under (b) or (c)(7). (5) Instead of filing a brief, or as part of its brief, a party may join in or adopt by reference all or part of a brief in the same or a related appeal. (Subd (a) amended