Find the specified element and execute subsequent code after finding it. This code is rewritten by BrockA's waitForKeyElements.js and uses the native js environment.
Hindi dapat direktang i-install ang script na ito. Ito ay isang library para sa iba pang mga script na isasama sa meta directive. // @require https://update.greasyfork.org/scripts/523085/1519645/waitForKeyElements3.js
