anchor.diff:  var
     NPos: integer;
   begin
  +  if FOptMultiline then exit;
  +
     NPos:= Max(0, FScrollPos-GetScrollPageSize);
     if NPos<>FScrollPos then
       DoScrollAnimation(NPos);
  
positive.code: 
    if FOptMultiline then
      Height:= R.Bottom+FOptSpacer2;
  end;
  
  function TATTabs.GetTabRect_Plus(AWithScroll: boolean=true): TRect;
  
negative.code:     NWidthPlus:= GetTabRectWidth(true);
    if FOptMultiline then
      FTabWidth:= FOptTabWidthNormal;
    NWidthSaved:= FTabWidth;
  
    R.Left:= FRealIndentLeft;
    R.Right:= R.Left;
  