@dried at one point, I had a kneeling setup with my notebook propped up on an easel to the right of me. The point of friction here is your body needs to turn. Also, it's not easy writing on an easel!
If I had time, budget, space, etc to think about this problem again, I'd probably try using a swinging monitor stand for my notebooks, and make it a clamped 30-45 surface for a writing. That would make the task of moving the notebook out of the way a little bit easier.
