Quick Guide: Marvelous Studio to iClone Physics 

Update: When your viewing the material for your garment, right next to the Launch button there is also a checkerboard icon and that will load the UV that CC3 is using into photoshop. That will allow you to make sure that you've got your gradient aligned properly.
I recorded this 3 times because the first two times OBS didn't record my entire screen, sorry about the length but I'll have to edit it next time. I wanted to get this uploaded. If anyone has any questions feel free to ask. I assume you know the basics of skin weight mapping in this video and how to do basic things in iClone 7 and Character Creator 3.