Hi,
I had three group:
1.admin:just as Administartor,can contrl any thing.
2.power:give some rights to manager and control module.
3.member:just use module,and can't contorl module

In event guide 2.54:
manager authodity doen't work on "System\Gurops "
so,i use "event guide\perforence\Group of Event Post "
but it just have one option to chose what group you can register a new event.

If I chose "member" ,then any member can reigster a new event.
If I chose "power",then just "power" can register,"admin" can't register one.

may be I shold new a group as eventRegister for rigister?
or I can just have a group "power" to register,and admin can regiser ,too.