Deconstructing a digital textbook created in Rise

As a part of an online OER course, I have built an interactive digital calculus book for a university. Now that the entire book is finished, the instructor would like it divided into module-sized "mini-books." It's a great idea.

Is there a workable way to copy and "paste" portions of lessons into new courses? I understand that we can make a block into a template, but this is a full textbook. There are literally hundreds of blocks. Making all of them into templates seems like a poor solution.

Do we have the ability to copy and paste lessons or portions of lessons into a new course?