@gridzz there should be
///api_version=2
as the first line

edit: you had it there before ah

Yeah, still doesn't work. What can I do, as I think it's the codes fault. I want to place blocks twice (aka the double clicking) and also set an option to double click on LMB later.

edit: you had it there before ah

Edit 1: Never-mind. LOL
Edit 2: It works but it doesn't show up in any of the arrow-gui lists, such as combat. I can bind it but I cant find it.
Edit 3: It doesn't work scam

var Mouse = Java.type('org.lwjgl.input.Mouse');
var Robot = Java.type('java.awt.Robot');
var InputEvent = Java.type('java.awt.event.InputEvent');
var script = registerScript({
    name: 'DoubleClick',
    version: '1.0',
    authors: ['Gridzz']
});
script.registerModule({
    name: 'DoubleClick',
    description: 'Click Twice!',
    category: 'Fun'

}, function (module) {
    module.on('update', function () {
        if (mc.gameSettings.keyBindAttack.isKeyDown() || Mouse.isButtonDown(0)) {
            var bot = new Robot();
            bot.mousePress(InputEvent.BUTTON2_DOWN_MASK);
            bot.mouseRelease(InputEvent.BUTTON2_DOWN_MASK);
        }
    });
});

Thanks! Definitely owe you a favour that I'm going to regret ±

Ok instead of quoting this can you send me an alternative?