Scala Plugin 1.7 for IntelliJ IDEA 15 EAP brings you a number of new features and improvements, among which we'd like to highlight these two: Inline refactoring for type aliases Invoked just as any other inline refactoring, by placing the caret on an alias you want to inline and pressing Ctrl+Alt+N. For now this refactoring is only available for non-parameterized types and for aliases that are used inside of the same class. Kind projector support Kind Projector is a Scala compiler plugin that provides an easy way to create type lambdas. Scala 1.7 plugin includes inspection that suggests