Kdyby\Replicator select z dynamicu

Zdravim, chcel by som vytvorit select z poloziek naklikanych v Replicatore. Bouzial neviem ako sa k tym datam dostat:

<?php
		$replicator = $properties->addDynamic('items', function (Container $container) {

			// Title.
			$container->addText('title', 'Title')->setRequired("Enter tab title.");

			$container->addSubmit('remove', 'Delete item')
				->setAttribute('class', 'buttonLight hidden')
				->setValidationScope(FALSE)
				->addRemoveOnClick();

			$container->addCheckbox('active', 'Active');
		}, 1);

	// A TU BY SOM CHCEL MAT NIECO TAKE
	// $this->addSelect('selected', 'Selected', $titles);
    // Kde $titles bude pole s naplnenymi hodnotami title, z jednotlivych itemov replikatoru
?>