import jalview.io.NewickFile;
import jalview.jbgui.GTreePanel;
import jalview.util.MessageManager;
import jalview.io.NewickFile;
import jalview.jbgui.GTreePanel;
import jalview.util.MessageManager;
SequenceI[] oldOrder = av.getAlignment().getSequencesArray();
AlignmentSorter.sortByTree(av.getAlignment(), tree);
CommandI undo;
SequenceI[] oldOrder = av.getAlignment().getSequencesArray();
AlignmentSorter.sortByTree(av.getAlignment(), tree);
CommandI undo;