At the moment, the split screen feature in Neoreader, where the device displays (in landscape mode) a page of a document on one side, and handwritten notes on the other side, is unusable for me - simply because I am left-handed.
The handwritten notes are always on the right, and the document on the left. As a result, if I want to write, my palm will almost always touch the left-handed side of the screen and be registered; plus, my hand hides the document on the left.
A simple option to switch sides, and display the document on the right and the notes on the left, would solve much - at least for me.
(Of course, more advanced split screen options, where one could display two different documents, or even two different apps, would be even better - but in the constraints of just Neoreader and handwritten notes, just the option to switch the left and right sides would really help)