Seperating the Audio (TUT): SOLVED 'Home key' on a Mac?

It’s about the Shotcut Tutorial ‘Mute and Detach Audio’ (Pos. 4:10), where the tutorial starts, how to seperate the audio from a clip. I couldn’t follow the instructions further, when I should press the ‘Home key’, because I had no Idea, where to find this on my MacBook…
This is unnecessary because it is just about positioning the timeline cursor to the beginning.
(It seems, the tutorial were created on a PC keyboard.)

Chris

The way around this limitation for users of short keyboards in case of macbook:

Fn+Left/Right arrows = Home & End
Fn+Up/Down Keys = Pg Up & Pg Down

From http://www.apple.com/shop/question/answers/mac/how-can-i-make-the-home-and-end-keys-on-the-apple-extended-keyboard-work-as-line-commands-rather-than-page-commands/Q7HY7K2UFDTUK7J7C