Sorting with node

When nodes are added via grouping, this is happening automatically

Example:

procedure TForm1.FormCreate(Sender: TObject);
begin
  AdvStringGrid1.RowCount := 50;
  AdvStringGrid1.RandomFill(false,10);
  AdvStringGrid1.Group(1);
  AdvStringGrid1.SortSettings.Show := true;
end;

When you click column headers, sorting is performed within groups.
Programmatically you can invoke this sort via AdvStringGrid1.QSortGroup;