myDevices allows you to group devices for easier identification and management. Think of groups like labels that you can apply to make it easier to identify a subset of devices on your account. (e.g.: ‘Home’ or ‘Dad’s Computers’)
In order to create or edit a group, log in to your myDevices account from your PC or Mac web browser, and click the ‘Manage Groups’ button in the upper-right. On the Groups page, you can use the ‘+Add Group’ button to create new groups or edit existing ones by dragging the devices and dropping them in Group boxes.
One device can be in as many groups as you like.