I only have experience of Poser manuals from P5 onwards, but they're pretty useless. Go read the descriptions of some of the Material nodes.

For instance:

FRACTAL SUM
The Fractal Sum node is a fractal function that returns values between –1 and 1. It has the
following attributes:

Which is a list of the inputs to the node, and nothing at all about just what sort of fractal math is going on.

And a diff file for P5 and P6 could be pretty short.