vlc loop a portion of the video

I dont understand stop and start.
do I press record button

You will press the button that I have marked below with the red arrow. So when you get to 22 minutes you would click that button once and then press this same button again when it reaches 44 minutes.

start the play button and when you get to the point you want to start the loop, click the button once and the left branch will change to RED

advance to the point where you want the loop to end, then click the loop button a second time and the right branch will change to RED

and

You will press the button that I have marked below with the red arrow. So when you get to 22 minutes you would click that button once and then press this same button again when it reaches 44 minutes.

what about red circle button on the left?

i dont understand 3rd step

loop button & play button. thanks