multi step form without click the next button

I am looking for a possibility to go through a multistep form without klick on the next button, but when a selection is made (for the steps with radios, and one option.

For that I found this code:

<?php 

add_action( 'wp_footer', 'formi_next', 99 );
function formi_next() {

	?>
	<script>

	(function($) {

    $(document).ready(function() {
        setTimeout(function() {
            $('.forminator-custom-form').trigger('after.load.forminator');
        }, 100);

        $(document).on('after.load.forminator', function(e, form_id) {

            let clickable_elements = $('.next-on-click input[type="radio"]');

			$(clickable_elements).click(function(){
				if( this.checked ) {
					$('.forminator-button-next').click();
    			}
			});

        });

    });

})(jQuery);

</script>
<?php

}

Which I added like this:

1. created an empty file with a php extension (e.g. “forminator-click-next.php”)
2. copy and paste this code into it.

But nothing happens…

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