Feature request: multiply default post types

If you’ll change line 165 of custom-simple-rss.php from
'post_type' => $csrp_post_type,
to
'post_type' => explode(',', preg_replace('/\s/', '', $csrp_post_type)),
it will be possible lo use more than one ‘default post type’ in settings or pass them in a http query string separated by comma.
Done this on my installation already, but I think it could be useful to other users.