How do you put sandpaper on an American Sander?

How do you put sandpaper on an American Sander?

https://www.youtube.com/watch?v=KbSx3LS0zE8

How do you use American Sanders RS 16dc?

https://www.youtube.com/watch?v=yCmBe9QN2ZQ

How do you orbit a floor sander?

https://www.youtube.com/watch?v=jH_R-PwtkNU

How do you use a plate sander?

https://www.youtube.com/watch?v=gzWhZEp0Fsk

How do you turn on American Sander OBS 18dc?

https://www.youtube.com/watch?v=KbSx3LS0zE8