Hi Nariman,
Please take a look at this post where @mmakki_10 responded to a similar question.
And regarding the indices, based on our experience, this depends on the problem at hand, So what I suggest is to run the simulation with default indices. And then analyse the results, and if the analysis indicated that exploration or exploitation need to be adjusted (i.e. if you spotted early convergence), then you can adjust the indices. The indices and their impact on the simulation are explained in our primer as well.