I guess I'm not getting it.
Example; I have StopLoss set for percentage in the strategy, and want to make the StopLoss value a user defined input for optimisation.
Using the strategy wizard, I put "StopLoss" in the name column, and default and minimum values, as per the brief.
However, neither varying the values for charting purposes, nor in the optimiser (same result for all values tested) produce anything but default value results.
As a check, amending the StopLoss value "hard" (ie in the wizard, or in the script) works fine.
This seems so basic, but I've assumed that the variable in the script (say "Fast" for SMA, as in your example) is what you put as "name" in the wizard, but this is evidently not the case.... What defines the "name" in question?
Rgds

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