IDE Features Trainer
Learn the basic editing features of IntelliJ IDEA
System requirements: IntelliJ IDEA 2017.3
Prerequisites: Add the plugin from the IntelliJ IDEA plugin repository automatically, or download it from the web at https://plugins.jetbrains.com/idea/plugin/8554-ide-features-trainer and then install it manually.
Run: Run IntelliJ IDEA with this plugin, and then click the Learn tool window button on the left-hand side near the window border.