Add-new

HTML

<link href="https://getbootstrap.com/docs/5.0/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-+0n0xVW2eSR5OomGNYDnhzAbDsOXxcvSN1TPprVMTNDbiYZCxYbOOl7+AMvyTG2x" crossorigin="anonymous"> 
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.1.3/js/bootstrap.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://code.jquery.com/jquery-1.4.3.min.js" integrity="sha256-+ACzmeXHpSVPxmu0BxF/44294FKHgOaMn3yH0pn4SGo=" crossorigin="anonymous"></script>
<script src="https://cdn.jsdelivr.net/gh/bbbootstrap/libraries@main/choices.min.js"></script>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/gh/bbbootstrap/libraries@main/choices.min.css">
 
  
  <div id="Multiple-Fields">
				<p>	
					<label for="items_list">
					<select name="items_lists" id="choices-multiple" placeholder="Please Select The Items" multiple>
					<option value="Item 1">Item 1</option>
					<option value="Item 2">Item 2</option>
					</select>
					</label> 	
				</p>
		</div>

		<h6><a href="#" id="add_Multiple-Fields">Add Multiple Fields</a></h6>

JavaScript

$(document).ready(function(){
	var multipleCancelButton = new Choices('#choices-multiple', {
	removeItemButton: true,
	maxItemCount:5,
	searchResultLimit:5,
	renderChoiceLimit:5
	});

	});


$(function() {
        var scntDiv = $('#Multiple-Fields'); 
        var i = $('#Multiple-Fields p').size() + 1;
        
        $('#add_Multiple-Fields').live('click', function() {
		
                $('<p> <label for="items_list"><select name="items_lists" id="choices-multiple" placeholder="Please Select The Items" multiple><option value="Item 1">Item 1</option><option value="Item 2">Item 2</option></select></label> <a href="#" id="rem_Multiple-Fields">Remove Field</a></p>').appendTo(scntDiv);
				
                i++;
                return false;
        });
        
        $('#rem_Multiple-Fields').live('click', function() { 
                if( i > 2 ) {
                        $(this).parents('p').remove();
                        i--;
                }
                return false;
        });
});