Ah, I think "yoko" is talking about a character whereby you can swap the head textures - or clothing to make a brand new character.
I manually did this with the CubixStudio ones:

I used to swap bits and pieces from one character to another to make dozens of slightly different characters.
So, if you take the character with the white shirt and black trousers and apply the brown leather trousers to him - you now have 3 characters - and so forth.
I manually did this with the CubixStudio ones:

I used to swap bits and pieces from one character to another to make dozens of slightly different characters.
So, if you take the character with the white shirt and black trousers and apply the brown leather trousers to him - you now have 3 characters - and so forth.