When you install FortiClient EMS, the free trial license is enabled by default. There are separate licenses for Windows/Mac/Linux endpoint management and Chromebook management.
The free trial license for Windows/Mac/Linux FortiClient EMS supports ten FortiClient endpoints. FortiClient EMS consumes one license count for each managed FortiClient device.
The free trial license for Chromebook management supports ten Google Chromebook users. FortiClient EMS consumes one license count for each logged-in user. If the user logs out, the license seat times out (default timeout being 24 hours), and the license is released. At this point, another user can use this license seat.