How to customize after installed?

[Scoodood]

Just wondering how do I further customize the keymap after installed? For example I would like to change from

swapLineUp : Shift-Ctrl-Up
to
swapLineUp : Alt-Up

[ryantam626]

hi sorry for the late reply..
i didn't implement that feature, if you are comfortable with typescript you can fork this repo and customise it yourself.

here are some pointers,

• this line changes the keymap to sublime for the active cell, you can add custom keymap to apply here

  jupyterlab_sublime/src/index.ts

  Line 233 in d297e58

  (activeCell.editor as CodeMirrorEditor).setOption('keyMap', 'sublime');

• to add custom keymap you probably need to follow https://codemirror.net/doc/manual.html#keymaps
  , you can access the codemirror instance by (activeCell.editor as CodeMirrorEditor).editor
  so something like

(activeCell.editor as CodeMirrorEditor).editor.setOption("extraKeys", {
  "Alt-Up": function(cm) {
    cm.execCommand("swapLineUp")
  }
});

might work