Keybinding is ridiculously cryptic. You can't bind a key unless it is already unbound. All I wanted to do was move the IJKL camera movement to the numpad, so I went to the camera section, selected the key I wanted to replace, and then pressed the key I wanted to perform that action. Nothing. Okay, I guess I have to unbind that key first. I need to figure out which of the five or six sections references the key that's bound, and then figure out how to remove the keybinds. The game doesn't tell me how to do any of this, I basically stumbled upon being able to do what I needed. At which point I could then, finally, return to the camera section to rebind the keys. Additionally, you can't rebind all the keys. The arrow keys, for example, are locked down. And then there are unlisted keys. Scroll Lock hides the interface, but there's no mention of that anywhere, not even in the Locked Key section of the keybinding interface.
In any reasonable game I've seen, you can simply click/target the object (INCLUDING XI). Why did they create two different ways to interact with non-player entities? NPCs you need to target, then hit Enter. Crystals and chests, you need to open the main menu (really?), then select that action. Having both available, I'd understand. Having a ridiculous division is simply bad design, no excuses.
