Does a judge have jurisdiction to dismiss all but one of the remaining causes of action?

the three causes of action without prejudice. The problem is that he dismissed the three causes of action after he filed a notice of appeal. But even so, the trial court had jurisdiction to dismiss the three remaining causes of action. (See Holloway v. Quetel (2015) 242 Cal.App.4th 1425, 1431, fn. 6, 195 Cal.Rptr.3d 920 ["[a]n appeal from a nonappealable order does not divest the trial court of jurisdiction"].)