I haven found any results only a few discussions, does anyone know a way to create frequency distributions of profits in the strategy analyzer. (frequency on one axis, and profits in % or $ on the other).

Or does an indicator exist, that shows statistical significances of profits in the strategy analyzer.

I could export the trades list to excel and go from there, but i would prefer a solution within ninja

You could try to run a Monte Carlo simulation. It would show you the frequency distributions of the cumulative profit of your trades, when selected at random.