about frxComponent access by index or similar

Hello:

I need optimized my code into the frx file, not in delhi code, so in this moment to developer use this code, i repeat in the code into frx file:

procedure MasterData1OnBeforePrint(Sender: TfrxComponent);
begin
  If( ( DayOfWeek( StrToDate(<Date01>) ) = 1) or
      ( DayOfWeek( StrToDate(<Date01>) ) = 7) ) then
  begin
       Memo11.Color := clRed;
       Memo42.Color := clRed;
       Memo73.Color := clRed;           
  end
  else
  begin
       Memo11.Color := clWhite;
       Memo42.Color := clWhite;
       Memo73.Color := clWhite;           
  end;
  If( ( DayOfWeek( StrToDate(<Date02>) ) = 1) or
      ( DayOfWeek( StrToDate(<Date02>) ) = 7) ) then

  begin
       Memo12.Color := clRed;
       Memo43.Color := clRed;
       Memo74.Color := clRed;           
  end
  else
  begin
       Memo12.Color := clWhite;
       Memo43.Color := clWhite;
       Memo74.Color := clWhite;           
  end;

  If( ( DayOfWeek( StrToDate(<Date03>) ) = 1) or
      ( DayOfWeek( StrToDate(<Date03>) ) = 7) ) then

  begin
       Memo13.Color := clRed;
       Memo44.Color := clRed;
       Memo75.Color := clRed;           
  end
  else
  begin
       Memo13.Color := clWhite;
       Memo44.Color := clWhite;
       Memo75.Color := clWhite;           
  end;

.....
...
..

  If( ( DayOfWeek( StrToDate(<Date31>) ) = 1) or
      ( DayOfWeek( StrToDate(<Date31>) ) = 7) ) then

  begin
       Memo42.Color := clRed;
       Memo73.Color := clRed;
       Memo104.Color := clRed;           
  end
  else
  begin
       Memo42.Color := clWhite;
       Memo73.Color := clWhite;
       Memo104.Color := clWhite;           
  end;

end;

so I wil prefer something so:

procedure MasterData1OnBeforePrint(Sender: TfrxComponent);

var i:Integer

begin

   for i := 1 to 31 do
   begin
      If( ( DayOfWeek( StrToDate(frxComponent.index[i]) ) = 1) or
       ( DayOfWeek( StrToDate(frxComponent.index[i]) ) = 7) ) then
      begin
       frxComponent.index[i+31].Color := clRed;
       frxComponent.index[i+62].Color := clRed;
       frxComponent.index[i+93].Color := clRed;
      end
      else
      begin
       frxComponent.index[i+31].Color := clWhite;
       frxComponent.index[i+62].Color := clWhite;
       frxComponent.index[i+93].Color := clWhite;
       end;
   end;
end;

but the reporter show error, so i think that this is because I do not how reference to frxComponet, in this case frxMem, for it index

Exists another metoht fot this correct???

thanks