The parameter file names are only using the script name but not the selected asset.
The supplied "OptimizeTest" script created the parameter files "Optimize_test1.par", "OptimizeTest2.par", and "OptimizeTest3.par" for the "EUR/USD" symbol pair.

Thank you,
Walt
Licensed Zorro-s

Right. Old Zorro versions had indeed under certain circumstances appended the asset to the file names, but that was changed long ago.

OK, Thank you, I asked Gemini and it did not know that change...
I already have Z running a stock and it looks good.
Thanks again.
Walt