iBook author - Thumbnail view grey'ed out
Hi,
I'm trying to do a final format review of my book - e-pub classic template used.
1. View option book outline (checked) and Thumbnail view grey'ed out. How do I make this available?
2. OR how do I adjust my pages/sentences/spacing etc in preview option?
3. Bonus question - I can't toggle between portrait and landscape view either - option not available. :-)
BTW I'm using the latest El captain and all apps up to date. Working on my Mac laptop.
Thank you for the tips!
MacBook Pro (15-inch Mid 2012), iOS 9.3.1