I came across Atticus software and I'm wondering if anyone in the group has heard of it or used it to lay out and format their books. I've watched some YT videos on it and it looks like it makes very nice looking book interiors and has lots of easy to use options for lay out themes. It also says that a person can use it as a word processor to write books. It's not a free platform. Cost is $147 one time, including future upgrades.
Cheers...