Please add the ability to use Vim or Emacs bindings to the script editor. It would be immensely beneficial to a designer's workflow if this could be an option. I personally use Vim (or Neovim to be exact), and it drastically increases my productivity while I'm coding. You can see countless articles describing why Vim and Emacs is so beneficial.
Vim, Neovim, and Emacs are all open source so there wouldn't even be any licensing issues that would need to be discussed with some upper management.