Site to Site VPN with FortiManager

Does anyone have a guide for setting up Site to Site VPNs using FortiManager? I can find old guides for older versions of FortiManager but even then its not very clear. I'm currently running FortiManager 5.2.1. Setting up VPNs manually on each Fortigate isn't hard but I feel like it should be easier to manage using FortiManager. I just need to setup a  Hub and Spoke Site to Site VPN.