TL;DR
Add ability to Shift+LMB (or any other appropriate hotkey) on a blueprint within the book to mark it as active.What?
Easy option for setting "active" blueprint within a book (one highlighted in green) is required. It might not be Shift+LMB, it might be any other hotkey, but it needs to be able to mark target blueprint within the book to be "active".Why?
The ProblemIt's quite common to group blueprints into a books to prevent library turning into a complete mess. It's also common to have some top-level books with intermediate books for hierarchal organization. And it's also common to pin books to the taskbar (i.e., rails book or mall book) so it does not take much space. And when doing so, you are often interested in "just click and paste", skipping the "open the book" step. However, to do so you need to make sure that currently needed blueprint is the "active" one. And that leads to the...
Current Status
Currently, there's option to change active blueprint by using Shift+MouseWheel, but there's a nuance -- if a book contains another book which contains another book each of which contain 50 different blueprints, it will take ages to loop through those. Adding ability to just select the required one would solve the problem.