<?php
/*
	Reorder Levels on Levels Page
	Adjust this code to your needs (change $levels_order) and
	add this to your active theme's functions.php or a custom WordPress plugins.
*/
function my_pmpro_levels_array($levels)
{
	//here is where you define the order of levels based on level id
	$levels_order = array(1,3,2,4);

	//loop through $levels_order array and pull levels from $levels
	$new_levels = array();
	foreach($levels_order as $level_id)
	{
		foreach($levels as $key => $level)
		{
			if($level->id == $level_id)
			{
				unset($levels[$key]);
				$new_levels[] = $level;
				break;
			}
		}
	}

	//include this line if you want to add any levels not specified in $levels_order to the end of the $new_levels array
	$new_levels = array_merge($new_levels, $levels);

	//returning our altered array
	return $new_levels;
}
add_filter("pmpro_levels_array", "my_pmpro_levels_array");
?>