Auto Enter Input

HTML

<form class="_k3t69">
    <input type="text" class="_7uiwk _qy55y">
</form>

<form class="_k3t69">
    <input type="text" class="_7uiwk _qy55y">
</form>

<form class="_k3t69">
    <input type="text" class="_7uiwk _qy55y">
</form>

JavaScript

var form  	= document.querySelectorAll("._k3t69");
var input 	= document.querySelectorAll("._7uiwk._qy55y");
var message = "Replacement..." ; 
var maxMsg  = 3 ;
var delay 	= 2.5 * 1000 ; // 2.5 Seconds

Array.from(input).forEach(function(inp, index){
	inp.addEventListener('keypress', function(ev){
  	if(ev.keyCode === 13){
    	console.log('enter pressed on: ' + index);
    }
  });
});

var j = 0, k = 0;
function setValue(){
  if( j == maxMsg || j == input.length) {
  	clearInterval(looping)
  } else {
    let currentInput = input[j++];
		currentInput.value = message;
    //And then simulate pressing enter key ON THE INPUT, not sumbit the form
    //form[k++].submit();    
    let event = eventFactory();        
    currentInput.dispatchEvent(event);
  }
}

function eventFactory(){
    var ev = document.createEvent('Event');
    ev.initEvent('keypress');
    ev.which = ev.keyCode = 13;
    return ev;
}

var looping = setInterval(setValue, delay);