I just downloaded PSO2 for the first time today on Steam (after the abysmal Microsoft Store launch), and the first thing I did, as always, was go to rebind my keys since I'm a lefty. I use the arrow keys for movement in all games. I noticed that even if I set the dropdown in the keybinding settings to "Custom," I am unable to to remap the movement keys from WSAD to the arrow keys. Am I doing something wrong/overlooking something, or is that just not an option? I'd find it pretty ridiculous if it's not since essentially every game I've ever played outside of early alphas/betas have had the ability to remap those keys. I have a controller if worse comes to worse, but I'd really prefer to use keyboard & mouse for the free aiming alone.
Any tips or guides on how to possibly change the movement keys in the game's files (if not in-game) without the use of third-party programs would be greatly appreciated!