[Plugin: Posts 2 Posts] fields

I love your plugin – thanks for your efforts!

Quick question…
Would it be possible in the fields array to populate a field with a taxonomy to create a select list? For example using your movie/actor demo…

Let’s say we had a taxonomy type called ‘roles’: leading actor, cameo, etc.

p2p_register_connection_type( array(
	'from' => 'actor',
	'to' => 'movie',

	'fields' => array(
		'role' => 'Role'
		'role_type' => 'array(
                   taxonomy roles here in select list
                    );
	),
	'context' => 'advanced'
) );

Would this be possible?
Thanks!