Fonts/Chapters

A couple of questions!

1: Are there other fonts available for the starter plan? If so, how do I access them?

2: Is there a way to write in the chapters without seeing the next chapter below it? Like let’s say I have chapter 2 started but I’m not finished with chapter 1, can I write in just chapter 1, or am I always going to see the beginning of chapter 2 at the bottom of the screen?

Thanks!