I probably should be asking over at Daz but since you gave me the link, I'll see if you've ran into this problem. I'm following the Clothing shop tutorial. I'm trying to make my Mannequin.  Upon export I'm supposed to have all checked EXCEPT "Use Exact Eternal Name Except Spaces" and "Weld Body Seams".

But the only two I am able to check and uncheck are what's show in the diagram.