$(document).ready(function() {
    function check_for_button() {
        if ($('div.react-grid-Toolbar .tools button.btn').length) {
            $('div.react-grid-Toolbar .tools button.btn').click();
            $('div.react-grid-Toolbar').hide();
        } else {
            setTimeout(check_for_button, 100);
        }
    }
    check_for_button();
});