There are a lot of ways to get from a bunch of loose objects to a figure. Some require tools outside poser. This method is one of several all-Poser techniques. You can do this using the Hierarchy Editor. This technique doesn't create a conforming figure. That's quite a bit more involved.

First you'll want to create props with appropriate internal names in their geometry. This isn't strictly necessary but it is good habit to start with the right names.

1. Load an position the props where you want them in the scene.

2. Open the group tool and select the first prop.

3. Create a new polygon group for the prop give it the name that will be your prop's body part name (LeftEarring1).

4. Add all the polygons to the new group.

5. [Create Prop] (NOT Spawn Props)

6. Delete the original prop.

Save your scene. Now repeat steps 2-6 for all the props you want to make into the figure. Now you need to set the hierarchy of the figure.

7. Open the Hierarchy Editor

8. Drag and drop the parts so they are parented in the order your new figure will need.

9. (Optional) Check [ x ] Show Parameters on the Hierarchy Editor.

10. (Optional) drag and drop the rotation dials to set the bending order for each body part the top one in the list will become a twist dial.

Save your scene. Now it's time to create the figure

11. Select the "root" of your figure, the top object in the figure shown in Hierarchy.

12. [Create New Figure] on Hierarchy.

13. Give it a name and [OK]

14. Start a new scene.

15. In the library go to the figures category > New figures then load your new figure.

16. (Optional) Use the Joint Editor to adjust the center of rotation for each body part.

17. (Optional) Use the Joint Editor to setup weights maps.

18. (Optional) If you don't need bending like with a mechanical figure. Select the body of the figure and un-check "Bend" on the Properties tab.

19. Re-save the new figure to an appropriate folder in the Poser Library. (Resave the figure even if you didn't change anything.)

20. If Poser prompts for a location to store the .OBJ file choose "Geometries folder".