Personal books: tab support in added fields / Mac
In the personal book builder, the tab key doesn't work as expected for added fields. This may be Mac-specific. Here are two suggestions.
1. When adding a custom field, set focus on the new input field. Use case: In the title field, I've highlighted and copied (⌘-C) the text I wish to use for my abbreviated title. I select "Abbreviated Title" from the "Add Field" drop-down. If focus was set on the new input field, I'd be able to paste (⌘-V) into it immediately.
2. Enable the tab key in the Additional Field inputs, and insert the fields into the tab order. For example, if I've added "Abbreviated Title" and "Series Title", set the new tab order to: Title, Author, Copyright, Abbreviated Title, Series Title, Description.
The disabled tab key is somewhat annoying on "Publisher & Publication Date", where one cannot tab from Publisher to Publication Date.