GenX Transferring

Hi. After getting GenX sorted I've been reading through the manual and could do with a little assistance.
I've several custom figures I've made for my comic which are Genesis based which I'd like to upscale to Gen2. They all have custom things like eye shapes etc so I initially thought GenX would allow me to load up a custom figure and then do the rest!!
But it seems to be created to look at morphs instead of a custom .duf file. If that's the case could someone point me in the direction of how I can take my custom .duf file and make a morph of it? I've looked through YouTube and searched but can't seem to get anywhere
Any help would be awesome. Thank you!