GetFitness - Max Consecutive Losing Trades

Hi Everyone,

I would like to create a new criteria on Optimization Criteria to Minimize the Max Consecutive Losing Trades.

I know we can use   protected override  for the method    GetFitness(GetFitnessArgs args)   . But I think this is just to use the existing criterias. 

How can I minimize the Max Consecutive Losing Trades? Or how can I create a new criteria? 

Thanks everyone and sorry for my bad english.