Footon,

Thanks for the steps.  Now I can view the stats

1. What's the rationale behind the Total Accuracy, what's the "ideal" or reasonable value to obtain? 1 is the minimum?

2. When I tried to input my opening conditions and observe how it affects the Entry/Exit Accuracy, I noticed that when I input an opening condition and just by changing the Base Price, I sometimes get NaN% and when I keep adding in new opening conditions, I still get NaN% but if I happened to changed the Base Price in one of these conditions, sometimes there will be values shown instead (I'm using Close and Reverse as closing). 

So my question is 2a) What cause NaN% and

2b) How come with the same opening conditions, if I were to change the Base Price, the value change from NaN% to some numeric values?  I understand that changing Base Price affect strategy's trading outcome, I would have expected the numeric to change in values not from "non existence, NaN%" to something else.  thus back to the 2a question, What cause such observation?

This Accuracy Stats are very useful for users (especially those who prefer to build their own strategy based on rules) to understand what caused our Strategy/trading theory to "fail".  Is it bad Opening conditions (Entry Accuracy Issue) or Bad Closing Conditions (Exit Accuracy Issue). 

In the past, we can only look at the Strategy's overall performance and clueless where (opening or closing) to zoom in to improve the strategy, we didn't know whether it's because we have poor Opening Conditions that cause the entry to be late in identifying a trend/breakout or enter too early (before a breakout) and thus exposing our trades to risk (price fluctuation and ultimately exit at SL).

or

Is it because we have poor Closing conditions that caused premature exit or late exit.  By examining the Accuracy Stats, we now know where lies the weaknesses/strength of our strategy.

Accuracy Stats also shows whether our trading rules (especially opening rules) have adequately reduce "false" signals and thus will resulted to higher Entry Accuracy. 

Likewise, Exit Accuracy helps us understand beside our trading rules, if we were to change our SL, TP or BE, what impact would it have on our Exit Accuracy.  Whether we have used too tight SL/TP/BE and if I were to increase my SL/TP/BE, will I improve the Exit Accuracy by preventing premature exit?  These Accuracy stat shed many important elements to our trading strategy's components that we could use it to identify areas for improvements.

In a nutshell, we want to prevent 1) False Signal that cause premature entries/exits and 2) Late Signal that cause late/slow entry/exit that reduce our profit margin.

Once we know the "weakness" of our Strategy, we can zoom in to the area that needs improvement, ie. work on improving either the opening or closing conditions. 

For example, if we know that we need to work on improving the Exit Accuracy, then we can lock the Opening Conditions to Generate better closing or Untick the Opening Conditions to Optimized the Closing Conditions.

Ideally, I wished the software will use the Accuracy criteria as a searching tool to find the optimal peak/tough rules that hopefully present better predictability in terms of finding repeatable patterns of behaviors.