Some websites allow you to load more data by clicking on a button. e.g. facebook massages or bank transactions. You can automated this process using the following approach. Open your browser console and copy and paste the following (from this answer):

setInterval(() => {
    document.querySelector('#someId').click()
}, 1000)

The above clicks the button every second. How to make it stop loading? I don’t know yet. I just save the page once the needed info is loaded. Selenium is another option but it’s more involved.