@User thanks for the feedback. yeah, it's tough to find keyboard shortcuts that don't conflict with anything else. and we can't scope it to the editor because many people spend most of their time in the editor instead of the preview. when i was looking, every combination of modifier and arrow key is taken for some kind of functionality (if you find a otherwise, let me know). i will add a line in the FAQ about overriding keybindings and conflicting keybindings.