Back testing strategy and adding or loading indicators/template to output chart

[TAJTrades]

Do a Help Search for "Add" and you will find this:

protected override void Initialize()
{
// Add a 5 minute Bars object - BarsInProgress index = 1
Add(PeriodType.Minute, 5);
// Add a 100 tick Bars object for the ES 12-06 contract - BarsInProgress index = 2
Add("ES 12-06", PeriodType.Tick, 100);

// Charts a 20 period simple moving average to the chart
Add(SMA(20));
}



Look at the last Add command.

[johan]

I am (back)testing a strategy with historical data. In the output chart I can see the buy and sell signals. When I want to insert indicators (or a template) in the output chart I am losing the buy and sell signals from the back testing strategy. Is there a way to add or load indicators in the output chart (afterwards) without losing the buy and sell signals?