Load user reference fields with multiple values

Hello,
Thanks for a fantastic module. I am hoping this can be added or that you can help me with a workaround or some ideas about how to approach coding this.

I need to have load multiple values from the user reference field and right now it only picks up the first (as the module states on the load user reference screen).

Specifically, what I am trying to do is to have a "Notify by email" field that allows the user to select which users should be notified of a post. Then, use triggered rules to send email to all those users. Token provides the email field for the loaded user reference, so I think I need a way to load those email addresses separated by commas.

Any help much appreciated - and it would be great to have this as a feature.

I'm not sure if this is the rule engine or module integration.

Thanks,
-Samantha