make all fields (including transaction ids) editable on the orders page in the PMPro dashboard

my_pmpro_orders_read_only_fields.php

/*
	Make all fields (including transaction ids) editable on the orders page in the PMPro dashboard.
	Add this code to a custom plugin.
*/
function my_pmpro_orders_read_only_fields($fields)
{
	return array();
}
add_filter('pmpro_orders_read_only_fields', 'my_pmpro_orders_read_only_fields');