[quoteI've just a silly beginner question: Are the files of the original V4 from DAZ with the installation of the new V4 WM overwritten? Or can I use both versions after installation of V4 WM?

The V4-WM distribution will in no way modifiy or impact any of your pre-existing files.  You can use both V4.2 and V4-WM without any problem.

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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.