Yea that was pretty much exactly what I was after, so I should not make new presets but just save over old ones?if I understand correctly your question, you want a variant Nephelym to appear in the game?
Any changes that you make on a Nephelym will appear inside the game, if you give them a new color it will appear with it
if you want to give them bigger boobs, butt, belly they will appear with that inside the game.
Open the file to the Nephelym you want to change it's appearence, pick any listed say: Mare color brown
Mod it then save on the same name and the brown Mare will appear with the change you made on it, same goes with
all the other Nephelym that you change. Carefull, if you change the boobs, butt or belly to something bigger, if the Nephelym
has a trait that normaly get those specific body parts bigger, you'll notice they will have smaller breasts, butt or belly than those who
won't have the trait. But see it like a headsup, if you're looking for a Nephelym with example: busty trait
I hope it help you
And also the thing about the traits, so if I make for example a model with bigger boobs, if that model now spawns in-game then their boobs will actually become smaller if they have the boobs trait? So if I edit a model exactly as I want it then I actually want to find a wild one without any traits for my changes to actually appear?