JSFiddle - React, Tailwind, and code Playground

CSS

#simulateCtrlShiftAltS{
    display: inline-block;
    width: 110px;
    background-color: #EA4E4E;
    color: #FFF;
    font-weight: bold;
    font-size: 21px;
    text-align: center;
    padding: 15px;
    cursor: pointer;
}

JavaScript

$('body').append('<span id="simulateCtrlShiftAltS">Click Me</span>');

    function simulateCtrlShiftAltS() {
        var keys = [
                {view: document.defaultView, bubbles: true, location: 1, keyLocation: 1, keyIdentifier: 'U+0017', key: 'Control', keyCode: 17, which: 17, altKey: false, ctrlKey: true, shiftKey: false},
			    {view: document.defaultView, bubbles: true, location: 1, keyLocation: 1, keyIdentifier: 'U+0016', key: 'Shift', keyCode: 16, which: 16, altKey: false, ctrlKey: true, shiftKey: true},
			    {view: document.defaultView, bubbles: true, location: 1, keyLocation: 1, keyIdentifier: 'U+0018', key: 'Alt', keyCode: 18, which: 18, altKey: true, ctrlKey: true, shiftKey: true},
			    {view: document.defaultView, bubbles: true, location: 0, keyLocation: 0, keyIdentifier: 'U+0053', key: 'T', keyCode: 83, which: 83, altKey: true, ctrlKey: true, shiftKey: true},
			    {view: document.defaultView, bubbles: true, location: 0, keyLocation: 0, keyIdentifier: 'U+0053', key: 'T', keyCode: 83, which: 83, altKey: true, ctrlKey: true, shiftKey: true},
            ], body = document.body;
		for (var i = 0; i < 4; i++) {
		    var events = [new KeyboardEvent('keydown', keys[i])];
			if (i == 3) events.push(new KeyboardEvent('keypress', keys[4]));
		    if (events[0].keyCode == 0) events.forEach(function(ev) {
			    ['keyCode', 'which'].forEach(function(p) {
				    delete ev[p]; Object.defineProperty(ev, p, {value: keys[i][p], enumerable: true});
				});
			});
            window.setTimeout(function(evts) {
			    return function() {evts.forEach(function(ev) {body.dispatchEvent(ev);});};
			}(events), i * 50);
		}
	}

$('body').on('click', '#simulateCtrlShiftAltS', simulateCtrlShiftAltS);

$('body').keypress(function(e) {
    if(e.shiftKey && e.altKey && e.ctrlKey && e.keyCode == 83){
        alert('Ctrl + Shift + Alt + T');
    }
});