The description for "Calculate for each item in count" for Leveled Items in teh GECK Wiki is... not helpful to me.



Determines if each item in the count is the same.... same what?

As in, if you have a box containing 40 List A and the list has a 25% chance of being nothing and contains Things X, Y and Z, then without "Calculate for each item" checked the box will have 40 identical things- either 40 'nothing', 40 X, 40 Y or 40 Z.
With it checked the box will contain ~10 X, ~10 Y and ~10 Z.

I don't know if this workflow for unchecked/checked makes more sense as a description:
40 List -> Calculate list -> Add 40 of it
40 List -> Calculate list -> Add 1 of it -> 39 List -> ...