MT4, how do the best optimization backtest, tnx

[Davide Tedesco]

Hi at all!

MT4, becktesting on EURUSD H1, period: 2016.11.01 - 2016.11.30

BUT, my question is:

how can good test a EA with many (8/9) inputs

consider that every input has many data input ????

Thanks so much at all for your help!