NT downloads historical data on an as needed basis, for charts and strategy backtesting. Is there a way to pre-download all required data (especially useful when testing against many instruments) and maintain it on the local drive? (The way it is handled in WealthLab, OpenQuant, etc).
If I'm connected to both DTN and IB, IB is automatically used as the datafeed. Is there a way to specify DTN? If so, is there a way to specify DTN for some charts/instruments and IB for others?
Thanks.
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