title: Vim key map in jupyter notebook
body: <p>When editing a .py file with jupyter, I have the option to choose the vim key map in the Edit dropdown menu (alongside the Default, emacs and Sublime text options). However, when opening a notebook file (.ipynb), I do not have this option. Is there a way to activate this?</p>
  
  <p>I know there are some third party plugins out there, but they don't seem to support block select mode and other more advanced options like regex commands.</p>
  
  <p>Not sure it matters, but I'm opening my notebooks with the Anaconda navigator.</p>