Chapter 14 Managing Devices for FortiOS 5.0 : Managing “bring your own device” : Device Groups : Creating a custom device group
  
Creating a custom device group
In addition to the predefined device groups, you can create custom device groups, where you choose the member devices.
For ease of identifying devices, Fortinet recommends that you assign each device an Alias. For previously detected devices, you can edit the existing device definition to assign an alias. For devices that have not yet been detected, you can add a device definition if you know the device’s MAC address. At that time you can also assign an alias for the device.
To create a custom device group and add devices to it
1. Go to User & Device > Device > Device Groups and select Create New.
2. Enter a Name for the group, Employees for example.
3. Click in the Members field and click a device to add. Repeat to add other devices.
4. Select OK.
The devices are added to the custom device group.