Atomでctrl-d, ctrl-e, ctrl-hでカーソル操作出来ない時のキーバインド変更方法

AtomでCtrl-d, Ctrl-eが動かない時のkeymap.csonの内容

# Your keymap
#
# Atom keymaps work similarly to stylesheets. Just as stylesheets use selectors
# to apply styles to elements, Atom keymaps use selectors to associate
# keystrokes with events in specific contexts.
#
# You can create a new keybinding in this file by typing "key" and then hitting
# tab.
#
# Here's an example taken from Atom's built-in keymap:
#
# 'atom-text-editor':
#   'enter': 'editor:newline'
#
# 'atom-workspace':
#   'ctrl-shift-p': 'core:move-up'
#   'ctrl-p': 'core:move-down'
#
# You can find more information about keymaps in these guides:
# * https://atom.io/docs/latest/customizing-atom#customizing-key-bindings
# * https://atom.io/docs/latest/advanced/keymaps
#
# This file uses CoffeeScript Object Notation (CSON).
# If you are unfamiliar with CSON, you can read more about it here:
# https://github.com/bevry/cson#what-is-cson
'atom-text-editor':
    'ctrl-a': 'editor:move-to-beginning-of-screen-line'

'.platform-darwin atom-text-editor:not(.mini)':
  'shift-cmd-K': 'emmet:remove-tag'
  'ctrl-d': 'unset!'
  'ctrl-h': 'unset!'

'atom-text-editor:not([mini])':
  'ctrl-e': 'editor:move-to-end-of-line'
  'alt-ctrl-e': 'emmet:expand-abbreviation'