Using Zen Mode to minimise the user interface

Minimise everything except the editor in IntelliJ IDEA

Zen mode helps you to hide everything except the editor. You can access Zen mode from the IntelliJ IDEA menu with View > Appearance > Enter Zen Mode. Alternatively you can use Find Actions ⌘⇧A (macOS), or Ctrl+Shift+A (Windows/Linux) and type in zen mode to enter or exit Zen Mode.