import {keyboardEventManager} from "../UserScript:KeyboardEventManager/script.js";
export async function test() {
    let selObj = window . getSelection();
    let keyboardEventInit = {
        ctrlKey: true,
        keyCode: "73",
    };
    await keyboardEventManager. selectWord();
};
window.onerror = function(error) {
    alert(error);
};

iPhoneだとコンソールが見られない……

import("https://scrapbox.io/api/code/dragoon8192-main/UserScript:test/script.js").
  then(module => {
    module.test();
});

全モダンブラウザで使えるJavaScriptのdynamic import（動的読み込み） - Qiita

scrapbox.PopupMenu.addButton({
  title: " 💪 ",
  onClick: test
});