Phily - import the relevant .3ds files into poser, arrange them to your liking. Then select File>Export>OBJ and select all of the items for export as one file. Then make a new scene, import the obj file, scale and position it if necessary, and just add to the Props library. If you want to texture the props then you should your uv mapping before reimporting the obj file.

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"you are terrifying
and strange and beautiful
something not everyone knows how to love." - Warsan Shire