Tampermonkey script that lets you use keyboard navigation for McGraw Hill SmartBook

// ==UserScript==
// @name         Keyboard navigation for McGraw Hill SmartBook
// @namespace    http://ioi-xd.net/
// @version      0.0
// @description  Make McGraw Hill Smartbook suck significantly less by allowing you to use Enter and the number row to input answers.
// @author       You
// @match        https://learning.mheducation.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=mheducation.com
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    document.addEventListener("keyup", (e) => {
        if(e.key == "Enter") {
            let buttons = document.querySelector(".confidence-buttons-container");
            if(buttons) {
                buttons.querySelectorAll("button")[0].click();
                let correct = document.querySelector(".choice-row.-correct");
                if(correct) {
                    setTimeout(() => {document.querySelector(".next-button").click();},250);
                };
            } else {
                document.querySelector(".next-button").click();
            }
        }
        if(+(e.key)) {

            let fields = document.querySelector(".multiple-choice-fieldset") || document.querySelector(".mcms-fieldset");
            let chosen = fields.querySelectorAll(".choice-row")[+(e.key)-1];
            if(chosen) {
                chosen.querySelector(".choiceText").click();
            }
        }
    });
})();