Chapter 3 Authentication for FortiOS 5.0 : Managing Guest Access : Configuring guest user access
  
Configuring guest user access
Creating guest management administrators
The guest management administrator can be a regular FortiGate administrator. Optionally, you can create administrator accounts that can perform only guest management. This type of administrator is also limited to specific guest user groups.
To create a guest management administrator
1. Go to System > Admin > Administrators and create a regular administrator account.
For detailed information see the System Administration chapter.
2. Select Restrict to Provision Guest Accounts.
3. In Guest Groups, add the guest groups that this administrator manages.