Have a Paid Memberships Pro level with access to EVERYTHING for multiple levels

my_pmpro_has_membership_access_filter.php

<?php

/*
  Give level 1 members access to everything.
  Add this to your active theme's functions.php or a custom plugin.
*/

function my_pmpro_has_membership_access_filter($access, $post, $user)
{
	if(!empty($user->membership_level) && in_array( $user->membership_level->ID, array( 12, 14 ) ) )
		return true;	//level 1 ALWAYS has access
		
	return $access;
}
add_filter("pmpro_has_membership_access_filter", "my_pmpro_has_membership_access_filter", 10, 3);