Move Payment Option fields under the Page Menu title on the Checkout Page

pmpro_move_level_options_fields.php

<?php // Do not copy this line

/**
 * Add the following code to your PMPro Customizations Plugin - https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 * Move Payment Option fields
 */
function pmpro_move_level_options_fields() {
	global $pmpro_pages;
		if(is_page($pmpro_pages['checkout'])) {

		?>
		<script>
			jQuery( '#pmpro_level_options' ).prependTo( '.pmpro_checkout-fields' ); // .pmpro_checkout-field-username
		</script>
		<?php
		}
}
add_action( 'wp_footer', 'pmpro_move_level_options_fields' );