Concerning the coconut beard. I did that in 20 seconds just to have quick look whether it's actually working or not. :)

You ghostman, are a true hero. Thanks alot.

Ok, those are the answers i needed (but didnt want). Thanks to both of you.

Hi caisson. I think it can. I exported the hair as a hairprop via GOZ from zbrush, then turned it into a figure, using the fittingroom. I adjusted it to the head and the neck and preserved the morphs. Back in the main menu i conformed it to the M4 model. Moving it around (as in the picture above) it behaved exactly the way i hoped it would. But for some reason it wasn't visible in the render.

Unfortunately no success with the skinning method. The difference to the first example you posted is that my figure actually spawned and is visible in the preview. There could be a specific problem related to Fibremesh. I dont know… I hope that there is a way to make it work, because it potentially looks so much better than the Poser hair system. You could of course create a hairprob for every body part but an adjusting hairfigure would be so much more elegant and convenient to use. Just look at it!!! Thanks again for making the effort.

Hi, EldritchCellar. Thanks for the suggestions. Unfortunately it didnt work. Very strange. Raytracing was checked :)