So I was poking around and realized I missed a major feature: a substitute for python's range() functions.
And while at it, I factored out some common code so that where() and orderBy() could handle and return sequences instead of just datasets. Of the four iterators, now only the selectStart() function requires and returns a dataset. forEach() still only returns a list, but can accept datasets, lists, arrays, and single integers (for range behavior).
Here ya go:
For Ignition v8.1+ only: v2.0.1.231651531