I'm not sure if it has to do with the configuration or it's a small bug, but the button which appeared in the Phase 3 video for creating scratch orgs isn't in my version.
I'm using IntelliJ 2017.2.5. as well as the latest version of IC, in a MacOS Sierra 10.12.6, if that's useful.
Furthermore, I do get the following message in the Event Log, but I don't know how to interpret it: Invalid configuration for module 'sfdx-devhub-tests'
Module 'sfdx-devhub-tests': The following must be configured properly: module must have at least one source root module must have a configured connection module's configured connection must resolve to a global connection module must have a generated offline symbol table module must use an Illuminated Cloud SDK
Thanks in advance!