Default (Windows).sublime-keymap

[
  {
    "keys": ["alt+z"],
    "command": "goto_last_edit_enhanced",
    "context": [
      {"key": "setting.sublime_enhanced_keybindings", "operator": "equal", "operand": true},
    ]
  },

  {
    "keys": ["alt+shift+z"],
    "command": "goto_last_edit_enhanced",
    "args": {
      "backward": true
    },
    "context": [
      {"key": "setting.sublime_enhanced_keybindings", "operator": "equal", "operand": true},
    ]
  }
]