In IntelliJ-based IDEs like Android Studio, in Java source codes, there is an option to extract things as constants when possible (final static). It is in Refactor -> Extract -> Constant and is accessible via Ctrl+Alt+C.
But I can't find it for Kotlin source codes!
Note 1: I can do it manually as you can see about NUMBER in the above screenshot (by defining it as a const val in companion object).
Note 2: The reverse-action is accomplishable by IDE; it means you can inline NUMBER with Ctrl+Alt+N.
