Yes. It is possible to reduce the requirements of the pages in the TNotebook and TTabbedNotebook components by destroying the handles of the components that are not on the current page. The following example demonstrates calling the protected DestroyHandle method of the page, by subclassing the notebook to get access to the protected method. type TMyTabbedNotebook = class(TTabbedNotebook); type TMyNotebook = class(TNotebook);

procedure TForm .TabbedNotebook Change(Sender: TObject;
                                       NewTab: Integer;
                                       var AllowChange: Boolean);
begin
  with TabbedNotebook  do
    TMyTabbedNotebook(
      TWinControl(Pages.Objects[PageIndex])).DestroyHandle;
end;
procedure TForm .TabSet Change(Sender: TObject; NewTab: Integer;
  var AllowChange: Boolean);
begin
  with Notebook  do
    TMyNotebook(TWinControl(Pages.Objects[PageIndex])).DestroyHandle;
  NoteBook .PageIndex := NewTab;
  AllowChange := true
end;