ST3 keymap[Library/Application Support/Sublime Text 3/Packages/User/Default (OSX).sublime-keymap]

Default (OSX).sublime-keymap

[
  {"keys": ["ctrl+a"], "command": "move_to", "args": {"to": "bol", "extend": false }},
  { "keys": ["ctrl+s"], "command": "show_panel", "args": {"panel": "find", "reverse": false} },
  { "keys": ["ctrl+r"], "command": "show_panel", "args": {"panel": "find", "reverse": true} },
  { "keys": ["ctrl+s"], "command": "find_next", "context":
    [{"key": "panel", "operand": "find"}, {"key": "panel_has_focus"}]
  },
  { "keys": ["ctrl+r"], "command": "find_prev", "context":
    [{"key": "panel", "operand": "find"}, {"key": "panel_has_focus"}]
  }
]