Ez skin with Genesis 2 models

I have a question, ¿you can use the EzSkin with Genesis2 models? (female and male) because they do not know if I'm doing something wrong but I can not use them, I believe that Genesis 1 I had set the figure as Gen4 and work (I'm not 100% sure but I think it was like that) but I can not do this, ¿you know if there is any impediment?

thanks in advance