Create an option to hide users that are not allowed to have a personal page from the people directory

Currently we have two kind of "super groups" allowed access to confluence. One is 'customers' one is 'employees'. The difference in the global permission scheme is that employees are allowed a personal spage and customers are not. We wanted to prevend customers from seeing eachoter in the people directory list. However even when someone does not have a personal page the user shows up in the people directory. Please make a simple option to "hide" people that are not allowed a personal space from the people directory. We do not want to hide the whole directory, just show only the employees and not the customers we have.