FortiLightHouse
FortiLightHouse is a 3rd party tool (set of tools in the future) to simplify and enhance troubleshooting of Fortinet FortiGate firewalls.
FlhCli
Command line utility for all major operating systems collecting various statistics over SSH connection(s) to FortiGate. It cannot do anything you could not do manually, but does it in very clever way.
Besides other things, it can also execute commands in cycles, based on simple XML scripts.