Only one question. How can I know if I have already learned a scheme or a volume? Obviously without looking the lists. Always disappears when I try to learn it. Not as in previous versions.
There's a book symbol on the top left corner of the schematics. If it is a closed book then you have not yet learned the schematics, if it is an open book then you have already learned it.
There is a white Book Icon in one corner. If the book icon is closed, you haven't learned it yet. If the Icon is an Open Book, you have already learned it.