I think one of Snarly's scripts will reposition and line up material room nodes.  Haven't tried it yet, though.  They do like to jump around a bit, the mat nodes.

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Cage can be an opinionated jerk who posts without thinking.  He apologizes for this.  He's honestly not trying to be a turkeyhead.

Cage had some freebies, compatible with Poser 11 and below.  His Python scripts were saved at archive.org, along with the rest of the Morphography site, where they were hosted.