How to click a button in multiple chrome windows at the same time?

Question

Google Chrome

Hello, you need to press the same button in several chrome windows (each window is a different chrome account) on the same site at the same time in all windows

Answer 1

In console

let dat = new Date();
let btn = document.querySelector('.btn');

setInterval( () => {
  dat.getMinutes() === 5 ? btn.click : false;
}, 100);