Java script in page settings for back button & Add to cart:

//Show Add to Cart button//
document.addEventListener(‘DOMContentLoaded’, function() {
const footer = document.querySelector(‘.fh-stock-cart-footer’);
footer.classList.add(‘show’);
});

//Back Button snippet//
document.addEventListener(‘DOMContentLoaded’, function() {
const backBtn = document.querySelector(‘#stock-item-back-btn’);
backBtn.addEventListener(‘click’, function () {
window.history.back();
});
})