Post linking instead of URL

Hey there,

is it possible to link a page using the page id for next step? Would be easier to deploy. Yet, I simply wrote <10 lines of code for this to work.

If not possible yet, could you consider the feature for the future?
What I did:

if ( strpos($options['next_url'], 'post-id:') !== false ) {
        list($attr, $id) = explode(':', $options['next_url']);
        if ( !empty($id) ) {
            $permalink = get_permalink($id);
            if ( !empty($permalink) ) {
                $options['next_url'] = $permalink;
            }
        }
    }

in module-multistep.php lines 77-85. Then you simply write post-id:<id> as url field.

Thanks