Coveo load more functionality

I am trying to implement "Load more" functionality instead the basic pagination in Coveo. My button code is below. Only the console logs work, the code don't send ajax to the service.

I have searched the Coveo documentation for load more button/functions but didn't find any.

//html code of button    
<div data-firstres="0" class="load_more_btn">Load More</div>     

//js
$('.load_more_btn').on('click', function() {
    var this_btn = $(this);
    var firstResult = this_btn.attr('data-firstres');
    var q = $('.magic-box-input input').val();
    console.log(q);
    var new_res = parseInt(firstResult) + 10;
    this_btn.attr('data-firstres', new_res);
    console.log(new_res);
    var root = document.body;
    Coveo.SearchEndpoint.endpoints['default'] = new Coveo.SearchEndpoint({
      restUri: 'https://platform.cloud.coveo.com/rest/search',
      queryStringArguments: {
          organizationId: 'replaced_val',
          numberOfResults: '10',
          firstResult:firstResult,
          q:q
        },
      accessToken: acc_token,
    });
    Coveo.init(root);
});

displayMoreResults worked for me

$('.load_more_btn').on('click', function() {
  Coveo.$('.CoveoResultList').coveo('displayMoreResults', 5);
});