in both cases (mouse/keyboard rebinds), you would need to use 3rd party software, if the company that made your keyboard/mouse has a software for their products, 9/10 you can rebind there, if not use something like x-mouse button control (for mice), not sure if there is external programs for keyboard rebinds

yes that's a glitch

don't download it, it's worse than the pc version and the bar for it was already in hell

very cool