How to name chapter with first line of text?

A:You can create chapters for book with the imported text files and name them with text files name or its first line. More details follow steps below:

1. Create New Book: click icon "create new book";
2. Create chapters: Directly click icon and here we click icon "Import text files" to build chapters;
3. Name chapters: check the checkbox: "The first line as chapter" as above illustration showed;
4. Click "OK", then the new chapter named by the first line sentence of the text file.