Woocommerce duplicate ADD TO CART button

Here’s some code I came up with that will filter the description and append the add-to-cart shortcode.

add_filter('the_content','append_add_to_cart');

function append_add_to_cart( ) {
	if ( is_single() && get_post_type( get_the_ID() ) == 'product' ) {
		$content = get_the_content();
		return $content . do_shortcode('[add_to_cart id="' . get_the_ID(). '"]');
	}
}

That shortcode doesnt give you a qty box. You should ask over on the woo forums how to do this better.

You put it in functions.php. It doesnt break my site. Maybe you copied it wrong. I dont understand your second question. Perhaps you’re better off asking over on the woocommerce forum since you wont be touching any kleo code to add it.