@haberno An empty script isn't supposed to show up. Try this
/// api_version=2
var script = registerScript({
name: "MyScript",
version: "1.0.0",
authors: ["My Name"]
});
Edit: We forgot to compile LiquidBounce with Nashorn. We will fix that.
Edit: Fixed version has been uploaded. If you are not using LiquidLauncher, re-download LiquidBounce 1.12.2.