Restrict access for Group Administrator to some settings

Hello,

we want use the privilege "Group Administrator" for customers to create there own users, but this customers should not have access to settings like Events or Limits&Settings.

Is there a way to hide this tabs for group administrators, or just set this settings to read-only for this group of users?

There was a unanswered question, like my one, some time ago: is there a way to limit rights in group administrator?

Example:

When I set a limit at server level, the group administrator can set there own limit for the group. That's what we want to prevent.

Daniel