Macros for multi-window games allow you to quickly switch between windows and use in-game macros. For example, you can configure switching between windows using the keyboard shortcut Win+digit, where the window number corresponds to a specific game window. This way you can quickly switch between different windows without having to spend time manually moving the mouse. In addition, you can also use in-game macros to automate certain tasks in the game. This will save you time and simplify the gameplay.