Saturday Mac riddles 90

Here are this weekend’s riddles to entertain you through whatever you’re now allowed to do.

1: Move through a document as if it’s rolled up paper or a volute.

2: Force, mathematician, apple.

3: You could have a go when in command, but as I replaced Stephen’s, so I’ve now been displaced by Paul’s. What am I?

I will post the answers first thing on Monday morning.

Please don’t post your answers as comments here: it spoils it for others.