Show Payment Plans after Membership Information on checkout page.

my_pmpropp_show_plans_after_pricing_fields.php

<?php // copy form below.
/**
 * Show Payment Plans after Membership Information on checkout page.
 *
 * You can add this recipe to your site by creating a custom plugin
 * or using the Code Snippets plugin available for free in the WordPress repository.
 * Read this companion article for step-by-step directions on either method.
 * https://www.paidmembershipspro.com/create-a-plugin-for-pmpro-customizations/
 */
function my_pmpropp_show_plans_after_pricing_fields() {
	if ( has_action( 'pmpro_checkout_boxes', 'pmpropp_render_payment_plans_checkout', 10 ) ) {
		// Unhook pmpropp_render_payment_plans_checkout from checkout boxes.
		remove_action( 'pmpro_checkout_boxes', 'pmpropp_render_payment_plans_checkout', 10 );
		// Add back pmpropp_render_payment_plans_checkout below Membership Information.
		add_action( 'pmpro_checkout_after_pricing_fields', 'pmpropp_render_payment_plans_checkout', 5 );
	}
}
add_action( 'init', 'my_pmpropp_show_plans_after_pricing_fields' );