I no longer have the Kindle Scribe with me. However, when I tested the feature, I needed to switch to landscape orientation before setting the layout in two columns. After activating landscape mode, the two columns option can be selected. I'm not sure if the landscape orientation and two-column settings will automatically apply to every e-book.
For #2, if I change to two columns on one book, will that format appear for my next book? Or is book by book?
I no longer have the Kindle Scribe with me. However, when I tested the feature, I needed to switch to landscape orientation before setting the layout in two columns. After activating landscape mode, the two columns option can be selected. I'm not sure if the landscape orientation and two-column settings will automatically apply to every e-book.