Anesphitia

Hi! I've made a skin mod for the Solarian Feline avatar, and I'm wanting to make an applier HUD for it. I've gotten the HUD itself made, and it's just how I want it to look, but I have no idea what to do as far as scripting it goes. I don't want anything too complex, I just would like to click the button and have the skin appear on the avatar.