Yes, that is one drawback.

But on my Mil characters I make the MAT pose files in Poser  Pro so they are compatible for DS as well.

And then I use P7 to create shaders or material collections for the material room

I don't mind the extra work because I usually use P7 for my own images and create the material files anyway. :)

Let me introduce you to my multiple personalities. :)
     BluEcho...Faery_Light...Faery_Souls.