1. AFAIK it all integrated, so you cant. If there is something you want to use ingame try this....For example, I use the summoning dolls a lot, so I keep them on the left of my inventory. I then drag the window under the health status bar so this small section is all I can see. I can then click on them in game without losing much of the screen.
2 I'm on my 2nd time through the game and now on hardcore, and I haven't sneaked once. If your like me, and like to slash everything into the meat grinder, dont bother with sneak.
3. yes, there list is predetermined in all levels, though as you progress, the levels they teach are usually higher. I have heard of some instances where your level can drop back ie if you find a book that teaches level 5, then train from a merchant in level 2, then level 2 could be the max. there are some threads on this, and I think it only occurs on some rare circumstances.
