Dear jacatone, they want to make it as easy as possible: Minimize your window with a click on the (big) icon in your Dock, at the bottom The button you can enable easily with elementary-tweaks, just follow this instruction: https://elementaryforums.com/index.php?threads/howto-install-elementary-tweaks.282/ You will get the minimize button like this: Another idea would be use hot corners, setup window minimize there: Settings > Desktop > Hot Corners enjoy