OBP is Bryce, Poser can't import it. The only option I can think about is loading the OBP into Bryce and then try exporting it as .OBJ. Bryce can't export everything, so I don't know if that works. You can import the OBJ in Poser and save it to a library. Textures can be a pain, though. Place them in a subfolder of :Runtime:Textures and use CorrectReference (here in freestuff) to fix the material references. If you have bought/downloaded Poser specific content, the easiest way is just unzipping it to the Poser folder. Textures and geometry files usually go into the right folders then. Since most content is for P4, the hierarchy structure of P5 is not used. Just drag the new folders to a more sensible location in your libraries using Explorer.

The pen is mightier than the sword. But if you literally want to have some impact, use a typewriter

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