okay if you are using d/s 2.x + it will AUTOMAGNETIZE, now what magnetize do is put magnets (deformers) into conforming figures, it helps to reduce the number of morph needed in the figure.
those magnets control for example the breast movements as in v4 they ARE magnets. normally in poser you should load V4, load its morphs(4.2), then load,parent,magnetize each confoming figure, this is to ensiure the crosstalking (morph follow).
the inj_ pose you have to load in actually injected in the clothes, so it will follow the morph when you load it to V4...

in few words: with v4, load, parent and magnetize is the workflow in poser since dazstudio does it itself.

hoped to help JasonBlood