User account on RouterOS (good for CPE)

Hi all

I was wondering if there is a way to give a restricted access to RouterOS. In few words when using routerOS+routeboards (for example, but the same is with all the CPEs running RouterOS) I would like to have a restricted access to the device in order to configure ONLY some user details, e.g. the user name/password for PPPoE or ohter authentication methods.
The reason why I would not give the whole access is because I would keep the bandwiddth “limits” and other details accessible only to the “admin” account

Any idea? Will it be added to future versions of RouterOS?

Thank you

pdf, right now you are able to apply only the following policies for router users,
http://www.mikrotik.com/docs/ros/2.9/guide/aaa_users.content#13.4.2