Runs the optimization separately for each strategy, as if every other strategy were commented out -- producing one optimization run (and one set of results) per strategy. Only affects Optimize mode. Can be combined with OptBySymbol to produce strategy × symbol optimizations.
When parameters are being optimized (in Combinatorial, Random or Genetic mode), each parameter combination is generated once and run for every strategy and symbol before the next combination is generated. In Random and Genetic modes every strategy and symbol therefore evaluates the same set of combinations rather than independently drawn ones.
