Hi Gilbert,
Here's how. First of all start up Strategy Trader and open a 1 minute chart. I used Cable for this example, and at this stage the chart will display the bid only. Right click on the chart and select "Insert Symbol":
CableInsertSymbol.jpg
Add another copy of GBP/USD. Then after a bit of resizing you'll end up with a double chart, with both top and bottom showing the bid price:
CableDoubleBid.jpg
Right click on the chart and select "Format Symbol". Change the top sub-chart to display the ask price, and make sure both sub-charts go back at least 300 bars:
CableFormatSymbol.jpg
Next left click on the little arrow next to the red "Auto" button in the top left of the chart and select "Strategy Properties". On the "Auto Trading" tab make sure "Order Replacement" is turned off:
CableStrategyAuto.jpg
and on the "Backtesting" tab turn on "Extended" mode. Depending on the strategy you're testing you may at some point want to turn on the "Bar Magnifier" as well, for more accurate backtest results:
CableStrategyBacktest.jpg
That's it in a nutshell. Easy enough when you know how?
Cheers,
Jim



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