I think you can.  You can't distribute the product though, just the morphs you create (custom morphs actually).  For Morphs++ or Daz dedicated dial morphs, you can use the Injection Pose Builder available at the Daz store. 

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Asus N50-600 - Intel Core i5-8400 CPU @ 2.80GHz · Windows 10 Home/11 upgrade 64-bit · 16GB DDR4 RAM · 1TB SSD and 1TB HDD; Graphics: NVIDIA Geforce GTX 1060 - 6GB GDDR5 VRAM; Software: Poser Pro 11x