Is there a way to add a notes section to an encounter so I can have ideas for triumph and despair ahead of time as well as more detailed descriptions of the area?
Note panels show up whenever there's space at the bottom of a page. For your needs, use the Information text box on the Description pane. It'll show up at the top of each page.
The problem with the note panels that appear if there is space left is that we can't type it in on the computer, but write by hand later. And the Info box doesn't allow for much text before being cut off on the top of the page.
I guess maybe what would be nice is a way to be able to type in more text, should we have lots of notes to put. Unless I'm blind and that's already in there?