日本語配列のHHKB使用時、Shift+_で?を入力するためのKarabiner-Elements用JSONファイル

hhkb_underscore2question.json

{
  "title": "Exchange underscore to question for hhkb",
  "rules": [
    {
      "description": "Shift+アンダースコアでquestionを入力",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "key_code": "international1",
            "modifiers": {
              "mandatory": [
                "shift"
              ],
              "optional": [
                  "caps_lock"
              ]
              }
          },
          "to": [
            {
              "key_code": "slash",
              "modifiers":  [
                  "shift"
                ]
            }
          ]
        }
      ]
    }
  ]
}