custom-user filtering?

I am using some custom filter to hide content in the media library:

function show_users_own_attachments( $query ) 
{
  $query['author'] = '-1'; // hide admin content
 return $query;
}
add_filter( 'ajax_query_attachments_args', 'show_users_own_attachments', 1, 1 );

Will the plugin allow this sort of filtering at the same time?