for a prop this should work.

1. model prop

2. model morphs if any

3. import model

4. load morphs

5. set materials

5a. set other material sets and save as a material collection or material.

6. save to prop library

obj files should be in runtime/geometries

texture image files should be in runtime/textures

materials are in runtime/libraries/materials

prop saved to runtime/libraries/props/vendor/item.pp2 where item is your prop name and vendor is your user name or vendor name.

check the pp2 file with a text editor to see what geometry file it is using and edit as required to keep the runtime libraries. You can have an obj file in the props library with the pp2 but its not standard.

 

if you create a runtime folder under the root of a drive C:/runtime you can create a zip file using pathnames that will extract to any runtime folder. Just duplicate the folder structure in your base runtime.

 

For a simple prop you can often just distribute the pp2 file and png thumbnail since Poser tends to embed the geometry. Use only node based materials and those are the only two files you need.