In addition to whats available now. Arguably, one of the greatest trading systems of all time was the Turtle System, and the Turtles used a 10 day trailing low price when they were long and vica versa on the short side. Right now thats not available in the Backtester. I submit adding the ability to select 1. a prior low price, and 2. Flexible days or periods. For example , test a trailing 4 day low, or maybe a 17 day low, and trailing highs for short sellers. Thank you for your consideration.