Sometimes, while working on your character's face, you might realize that you've gone too far and can't figure out how to undo something you've done.

For example, I was modifying my character's mouth and managed to create an indentation under the lower lip; I could not for the life of me get rid of it without deforming the bottom lip, even though I knew that it should be possible.

Lets further assume that you're happy with the rest of the face, and it's only one region that is bothering you. Wouldn't it be nice if you could revert it to "stock", where it's only being shaped by vanilla sculpts?

Fortunately, thanks to LooksMenu presets and their simple structure, you can. It's just a matter of doing a bit of comparison of hexadecimal numbers; something that's not nearly as daunting as you might think.

Each sculpt has an ID number. These are in decimal format when read by the game, but stored in presets in hexadecimal. As with decimal, hexadecimal always logically goes "up"; e.g. 76c91 is a lower number than 76ca1, 76d00 is higher than both of those, and 7d9a7 is higher than all of those. Hex counts 0-9, then goes A-F before rolling over (so each digit can represent up to 16 in decimal).
As long as you know your ABCs and 123s, figuring out if a number you're looking at falls within a given range should be easy most of the time.

Resetting a sculpt is as easy as finding the line in the preset file with its number, and deleting it. If you worked on one region at a time, then most or all of the lines for a region should even conveniently be grouped together for you.
I personally recommend deleting entire regions, rather than trying to single out sculpts, since the changes you've made to one sculpt will generally depend on several others.

• In-game, save a preset. Give it an obvious name so you can find it easily.
• Locate your Presets folder. This should be in \Fallout4\Data\F4SE\Plugins\F4EE\Presets.
• Alternatively, have Windows search for "(your preset name).json".
• Open the preset file. Wordpad is adequate for this.
• Triple-click on the preset ID you wish to remove, and press backspace to remove the line. Repeat as needed and save when done.
  

• Forehead: 7A31E
• Temples: 7A508 - 7A54B
• Ears: 7A6FC - 7AD1B
• Eyebrows: 7AECC - 7B4E8
• Eyes: 7B69C - 7B8D3
• Nose: 7BC78 - 7C689
• Mouth: 7D3E8 - 7E3D2
• Dimples: 7E57C - 7E5C6
• Single-sided sculpts: AF8B74 - BF00BC