Hello
If I do a search in the library and a book (or the searched book) is on top, then it would be great it opens by hitting enter. What should be the normal case.

The searched bible is on top, now a quick hit on the return button and the book opens.
It makes no sense to 1. use no short-cut key to open the library. 2. Because for the search we need the keyboard. And then after the search we have to use the mouse again. Really?
I'm not lazy, but it makes not sense to use the mouse/trackpad to open the library. Then switch to the keyboard to search for the book. After the book is appeared. We have again to go back to mouse/trackpad to open the book. This is a good gymnastic but for me absolutely unnecessary.
Better all is working by keyboard.