Once the clan has been added to the system , the clan admin can administor it.
The clan leader can log in through accounts and access through the clan setup option.
Options .....
- Players can be added to clan ( using members option ).
- All the clan details can be edited / altered ( using options ).
At the moment , you will have to log in to alter any part of this.
I'm sure that this will be changed so that you log in once and then you can access all clan areas without having to login again.