multi timeframe error

[yawbus]

Hi,
I get an error when I use Add() to include a different timeframe. I've checked a few sources but just can't see anything wrong with the syntax. Please could anyone help ?

protectedoverridevoid Initialize()
{
CalculateOnBarClose = false;
Overlay = true;
PriceTypeSupported = false;
ClearOutputWindow();

int MTFmulti = 3*Bars.Period.Value;
if (Bars.Period.Id == PeriodType.Day) Add(PeriodType.Day, MTFmulti);
if (Bars.Period.Id == PeriodType.Minute) Add(PeriodType.Minute,MTFmulti);
...

The error given is "No overload for method 'Add' takes '2' arguments"
Code "CS1501"

[yawbus]

After more searches in the forum, it seems I currently can only use the multi timeframe code for strategy but not indicator for NT6.5. Is this correct ?

[NinjaTrader_Bertrand]

This is correct yawbus, MultiSeries indicators will be supported with our NT7 release -

http://www.ninjatrader.com/webnew/NT7/NinjaTrader7.html

You can still work in strategies and then plot from them to achieve a similiar function -

http://www.ninjatrader-support2.com/vb/showthread.php?t=6651