Kotlin

Easily add breakpoints from the run window

Use quick intentions to add names to call arguments

Use quick intentions to generate code automatically

Perform basic calculations with Search Everywhere

Selecting code by scope

Use quick intentions to convert to a template string

Use quick intentions to convert to use expression body syntax

Create an editor fold to hide parts of your class

You can move editor tabs around as required

Git Staging is an alternative approach to IntelliJ IDEA Changelists

Extract code to a parameter in Kotlin

Find next word and highlight all instances

JVM developers working with Kotlin code can create UML diagrams for their Kotlin classes, just like they could with Java classes

IntelliJ IDEA Ultimate allows you to generate UML diagrams.

View your git commits in the Search Everywhere dialog

Minimise your interface to allow you to focus on your code

Hide all the windows to increase your workspace

Get a project from source control, open an existing project, or create a new project

Use code and statement completion to write code faster

Start a new line below or above your current line with the correct indentation.

Enforce architecture rules, such as data access layers not depending upon UI layers.

Use quick intentions to improve the readability of your code

Use quick intentions to remove explicit types

Add virtual whitespace to the bottom of a file

Toggle Tool Windows to tailor your interface

Editor breadcrumbs show you your file structure

Learning new things in the IDE