jupyter_sublime_keymap.js

//add to ~.jupyter/custom/custom.js
//full list of key bindings here --> https://codemirror.net/demo/sublime.html
//reference --> https://stackoverflow.com/questions/36384921/disable-ctrlenter-sublime-keymap-in-jupyter-notebook

require(["codemirror/keymap/sublime", "notebook/js/cell", "base/js/namespace"],
  function(sublime_keymap, cell, IPython) {
    cell.Cell.options_default.cm_config.keyMap = 'sublime'
    cell.Cell.options_default.cm_config.extraKeys["Ctrl-Enter"] = function(cm) {}
    var cells = IPython.notebook.get_cells()
    for(var cl=0; cl< cells.length ; cl++){
      cells[cl].code_mirror.setOption('keyMap', 'sublime');
      cells[cl].code_mirror.setOption("extraKeys", {
        "Ctrl-Enter": function(cm) {}
      });
    } 
  } 
  )