Shared and individual settings

Hi anlutro and thank you for this nice package. I wanted to ask if in a future release it could be possible to have shared and individual settings. As far as I see you can only have one of the two at the moment.

With shared I mean settings, that are the same for everyone. If you change the name of the website in a CMS, it gets changed for everyone. If you change the backend interface language you sometimes don't want other users to be affected.

Is this realizable?