[Feature] Limit/hide settings for low level users

[54321nicko]

Would it be possible to add an admin option to limit or hide certain settings for low level users/groups?

Personal info, sharing, groupware, flow, ...

This would be super usefull to prevent very low level users from messing around with too much. I know it doesn't really affect anything critical but it looks very messy and weird to have those settings there...