The GUI is fairly simple.

• Select the axis along which you want the chain to be created.
•  Select the location at which you want to save the .cr2 and .obj.  (Default is Runtime:Libraries:Character:Untitled.cr2)
• Enter the number of links long the chain will be.

The remaining settings all pertain to the shape, size, and resolution of the links. - Sections is number of radial divisions of loop, as in Mr. Looper.

• Slices is number of divisions of each cross-section ring of the loop, as in Mr. Looper.
• Thickness is the radius if the cross section rings of the loop, as in Mr. Looper.
• Radius is the radius of the two circles which will be used to generate the links.
• Link Length is the number of circles long the link will be.

By varying these settings, you can create a wide variety of chain link styles.

Currently the script will generate the .cr2 and .obj files and isn't auto-loading the figure once it has been created.  I can add that in the next release, if that would be a preferred handling.  

There is no need to close the script after creating a chain.  More can be created, although they will overwrite one another if the path is not changed for each one.

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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.