Oh! I found a menu for remapping controls, but it's only in the in-game settings menu, not the top level settings menu as I'd expect. Unfortunately when I press "remap controls" I don't seem to have any way to actually select any of the controls to remap - the only thing that changes is the "remap controls" button becomes an "ok" button. Also, when I open the back menu, the bumpers seem to switch to a random tab in the book each time, instead of going to the next/previous tab.