MacOS Tips: Expand all in Finder

In the Finder when you are using List Views, when you open a folder, the content of the folder is collapsed by default. You have to manually click on each folder to expand its content as well.

There is a faster method of expanding all the underlaying folders in one click and that is with: Option-Click on the triangle.

Note this also works in other applications like XCode for example.

Default behaviour
Option-Click behaviour