Batch Building Skin Textures?

[heckdo]

Hey all,

 

Wondering if anyone can help me. I'm trying to layer and then export .dds skin texture files in GIMP but it's an arduous process. There multiple racemenu, skin textures, and misc. textures I want to layer to create as much variability among NPCs as possible using Everybody's Different Redone.

 

Again, it's an arduous process.

 

So, does anyone know of any way that I can input multiple texture files onto one skin texture, and output as that skin texture + plus whatever I wanted?

 

Skin + tattoo 1

Skin + tattoo 2

Skin + tattoo 3

Skin + tattoo 1 w/ freckles

etc, etc.

 

^ like that?

 

Thanks.