Add more than one relationship at a time (MB_Relationships_API::add )

Hello,

First of all, great plugin!

I am programatically creating relationships between users and posts but in the documentation it only appears possible to add one relationship at a time. I can acheive what I want to using a loop but it's not good for performance. Is there a more appropriate way to acheive the following?

    foreach($array_of_post_ids as $post_id) {

        MB_Relationships_API::add(
            $from       = $user_id,
            $to         = $post_id,
            $id         = 'metabox_relationship_id',
            $order_from = 1,
            $order_to   = 1
        );

    }

I would ideally like to pass in a single array of post ids but this doesn't appear to work.

It's not a big problem because my arrays are relatively small in size but would like to know if there is a better practice here? Even a hacky workaround would be better than a loop I feel.

Many thanks.