Use PMPro Register Helper to add PMPro Billing Address fields to the edit user page for admins.

show-pmpro-address-fields-on-profile.php

<?php
/**
 * Use PMPro Register Helper to add PMPro Billing Address fields to the edit user page for admins.
 */
/**
 * show_pmpro_address_fields_on_edit_profile Grabs the values from the billing fields which get filled in during checkout and displays on User Profile.
 *
 * @return array Array of Register Helper field objects
 */
function show_pmpro_address_fields_on_edit_profile() {
	// Require PMPro and PMPro Register Helper
	if ( ! defined( 'PMPRO_VERSION' ) || ! defined( 'PMPRORH_VERSION' ) ) {
		return;
	}

	// List the fields you want to include
	$address_fields = array(
		'pmpro_bfirstname' => 'First Name',
		'pmpro_blastname' => 'Last Name',
		'pmpro_baddress1' => 'Address 1',
		'pmpro_baddress2' => 'Address 2',
		'pmpro_bcity' => 'City',
		'pmpro_bstate' => 'State',
		'pmpro_bzipcode' => 'Zipcode',
		'pmpro_bphone' => 'Phone',
	);

	// Define the fields
	$fields = array();
	foreach ( $address_fields as $name => $label ) {
		$fields[] = new PMProRH_Field(
			$name,
			'text',
			array(
				'label' => $label,
				'size' => 40,
				'profile' => 'only_admin',
				'addmember' => true,
			)
		);
	}

	// Add new checkout box with label
	pmprorh_add_checkout_box( 'billing_mailing_address', 'Billing/Mailing Address' );

	// Add fields into a new checkout_boxes area of checkout page
	foreach ( $fields as $field ) {
		pmprorh_add_registration_field(
			'billing_mailing_address', // location on checkout page
			$field            // PMProRH_Field object
		);
	}
}
add_action( 'init', 'show_pmpro_address_fields_on_edit_profile' );

This recipe is included in the blog post on "Display the Member’s Billing Address Fields on the Edit User Page for Admin Only" at Paid Memberships Pro here: https://www.paidmembershipspro.com/display-the-members-billing-address-fields-on-the-edit-user-page-for-admin-only/