That's how FaceGen works. I mean, what you want cannot be done with ordinary mod(Unless you want to delve into game engine and middlewares). For vanilla races, I suggest you to use FaceGen modeller(you can download free demo version) to make a face, then use FaceGen to Oblivion converter to transplant .fg face into your save file. Of course, you will see related sliders moving together(as I said, it's how FaceGen works), though it's easier to make decent face than in-game. Thanks, but it would be awesome if you can keep the sliders from moving by themselves that will make for better characters, I mean how awesome will characters look if the sliders stayed where you wanted them to stay.