...in einem DBGrid mit Enter ins nächste Feld wechseln?

procedure TForm1.DBGrid1KeyPress(Sender: TObject; var Key: Char);
begin
  if Key = #13 then
  begin
    if DBGrid1.Columns.Grid.SelectedIndex < DBGrid1.Columns.Count - 1 then
      DBGrid1.Columns[DBGrid1.Columns.grid.SelectedIndex + 1].Field.FocusControl
    else
    begin
      Table1.Next;
      DBGrid1.Columns[0].field.FocusControl;
    end;
  end;
end;