QUOTE(SubRosa @ Aug 6 2017, 11:20 AM)

I saw mutant powers, but it did more than I wanted to. If it had just been something that allowed you to pick a mutant power I might have tried it. But I didn't want other people having powers, having to kill them to get their powers, and generally turning the Fallout world into the X-Men.
Creating a new item from an existing mesh and textures is one of the easier things to do. The simplest way is to keep the same names and folder structure the meshes and textures had before. Because the mesh file has a list inside it with the path\name of every texture it uses. So if you change the name or folder the textures are in, the mesh cannot find them.
So copy your meshes and textures to your Data folder. Open the Creation Kit, and find another hat. Change the ID and Name to what you want for your new tophat. It is good to start all IDs with a 0, because that way it is always at the top of every list and easy to find. Delete whatever is in the ArmorAddon field. Keep the Keywords as they are. Make sure Playable is checked. Save and close that.
Now go to the ArmorAddons. Again pick one for a hat and change its ID to what you want for your new hat. You will see a Biped Model field for male and female. On each click on the Select button. A Model Data window pops up. On the top you will see the path and name of the mesh file. Click on Edit and go through the folders to find your new tophat mesh and select it. When it comes back to the Model Data window you will see a preview of the mesh. It might be all red and lacking the texture. Don't worry, that happens a lot when you first select a new mesh. It does not mean it will look that way in the game. Click OK to close, and do the same with the ArmorAddon record.
Now go back and open the Armor record for your hat. Go to the ArmorAddon field, left-click, click on New, and select your new ArmorAddon. You might want to look in the Biped field. You will see things like Headband, Eyes, Beard, Mouth, etc... are selected. Those are the slots on the wearer's body that the hat will fill. That means nothing else using the same slots can be equipped. So if you have Eyes selected, you cannot wear glasses and the hat at the same time. It is a good idea to remove all but Hair Top and Headband. But keep at least one thing selected.
Save and close and you are done.
Thanks SubRosa. This will be very handy when Khajiit goes to make his hat!
Re: Mutant Powers
Yeah, this one does not like that others will have powers too. The character Khajiit has in mind should be the only one around with powers. Otherwise, he would be nothing
special.