For Step 1, you don’t actually have to change any of the settings unless you have posed your character already. In that case, you would need to check the bottom box.
For Step 5, you probably don’t need to change anything, either. However, if you look at the imported model and see that its “inside out”, then check the box to flip normals on import. I’ve found Poser to be very unpredictable as to whether or not that is necessary, so you really won’t know until you import the model for the first time. The other stuff doesn’t matter, at all.
For Step 6, spawning props doesn’t create new figures or add anything to your library. It simply breaks your model up within the document into a separate prop for each group. You then go to File>Export. The export hierarchy will show each of the new props. You export them one at a time.
Hope that helps!
The Namek: I know that ZBrush was used for some of the morphs for Victoria 3. In fact, you can tell which ones by setting the morph to a value past 1. If the morph starts to get jagged and break apart, it was created with a points modeler. If it stays clean, it was created with ZBrush. The reason why this happens is that the ZBrush modeler affects several points at once with a smooth falloff. This interpolates the effect between the area of maximum effect and the areas of no effect. With a points modeler, it is all but impossible to move points in a similar manner. As a result, when the morph is at a value of 1 or less it looks like it was intended to. But when the morph is pushed past 1 you start seeing that the points are actually moving at different speeds, which causes the morph to break apart.