is there a way to add a percentage stop loss as an exit/sell condition?
thanks
Yes there is.
In the Backtest Trading Systems dialog (https://stockalyze.com/help/manual/topics/backtest.html) the Maximum loss field is for stop loss. By default it's value is 7%. You can change it to anything you want.
Please let me know if you need any more help.
Regards,
Sacha