karabiner 0.91.3 caps lock to ctrl when chorded or esc when pressed alone

gistfile1.txt

          // modified from http://brettterpstra.com/2017/06/14/full-hyper-key-functionality-restored-in-sierra/
          // this makes caps lock turn into "left control" if pressed with another key
          // and "escape" if pressed by itself.  Requires karabiner elements 0.91.3 or higher to have
          // the "to_if_alone" section.  Place after "simple_modifications" in the ~/.config/karabiner/karabiner.json file
          "complex_modifications": {
                "rules": [
                    {
                        "manipulators": [
                            {
                                "description": "Change caps_lock to command+control+option+shift. Escape if no other key used.",
                                "from": {
                                    "key_code": "caps_lock",
                                    "modifiers": {
                                        "optional": [
                                            "any"
                                        ]
                                    }
                                },
                                "to": [
                                    {
                                        "key_code": "left_control"
                                    }
                                ],
                                "to_if_alone": [
                                    {
                                        "key_code": "escape",
                                        "modifiers": {
                                            "optional": [
                                                "any"
                                            ]
                                        }
                                    }
                                ],
                                "type": "basic"
                            }
                        ]
                    }
                ]
            },