IIRC, a you need a material collection for Poser to ask for the creation of the material.

If you save your material as a single shader, Poser will ask where to put it, no matter where it has been earlier. If you save your materials as a material collection, Poser will create the materials for you. I just checked with the Construct and a material collection from La Femme - the new materials are clearly visible in the material room.

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

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