Maybe i'm stupid but i can't configure OG Notification for a very simple task.....

I have activate all the modules and the system send emails on content type to users. But i want to send email to a user when admin add it directly from "Add user" function /og/users/XX/add_user. I try with Rules but there isn't support for this.... it's a new feature or simple there is a configuration that i miss?

It's stupid missing the email alert when user can't say of the adding...no?

Thanks for the help.