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Q&A Remapping backspace with Karabiner Elements

I'm using Karabiner-Elements to remap some keys. I would like remap backspace to forward delete option + backspace to backward delete To do this I tried to write the following rule ...

1 answer · posted 3y ago by samcarter‭ · edited 3y ago by Canina‭

Question Karabiner-Elements JSON

#3: Post edited by

Canina‭ · 2021-08-30T21:03:37Z (over 3 years ago)
While the problem is with a specific piece of software, a significant portion of the question is about JSON, so a JSON tag seems appropriate

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Remapping backspace with Karabiner Elements

I'm using [Karabiner-Elements](https://github.com/pqrs-org/Karabiner-Elements) to remap some keys. 

I would like remap 

- `backspace` to forward delete

- `option` + `backspace` to backward delete

To do this I tried to write the following rule and place the `.json` file in `/Users/<username>/.config/karabiner/assets/complex_modifications`, but the rule does not even show up in rule selection window. 

![rule selection window](https://powerusers.codidact.com/uploads/AcSoV2zjwWrEQBtyLxNxtFyz)

```
{
  "title": "Swap backspace to forward delete",
  "rules": [
    {
      "description": "Backspace to Forward Delete",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "key_code": "delete_or_backspace",
          },
          "to": [
            {
              "key_code": "delete_forward"
            }
          ]
        }
      ]
    },
    {
      "description": "Option + Backspace to Backspace",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "key_code": "delete_or_backspace",
            "modifiers": {
              "mandatory":[
                "option"
              ]
            }            
          },
          "to": [
            {
              "key_code": "delete_backwards"
            }
          ]
        }
      ]
    }
  ]
}
```

Is there any syntax error in my rule or why doesn't it show up in the rule window?

#2: Post edited by

samcarter‭ · 2021-08-30T15:34:49Z (over 3 years ago)

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I'm using [Karabiner-Elements](https://github.com/pqrs-org/Karabiner-Elements) to remap some keys.
I would like remap
- `backspace` to forward delete
- `option` + `backspace` to backward delete
To do this I tried to write the following rule and place the `.json` file in `/Users/<username>/.config/karabiner/assets/complex_modifications`, but the rule does not even show up in rule selection window.
![rule selection window](https://powerusers.codidact.com/uploads/AcSoV2zjwWrEQBtyLxNxtFyz)
```
{
"title": "Swap backspace to forward delete",
"rules": [
{
"description": "Backspace to Forward Delete",
"manipulators": [
{
"type": "basic",
"from": {
"key_code": "delete_or_backspace",
},
"to": [
{
"key_code": "delete_forward"
}
]
}
]
},
{
"description": "Option + Backspace to Backspace",
"manipulators": [
{
"type": "basic",
"from": {
"key_code": "delete_or_backspace",
"modifiers": {
"mandatory":[
"option"
]
}
},
"to": [
{
"key_code": "delete_backwards"
}
]
}
]
}
]
}
```

I'm using [Karabiner-Elements](https://github.com/pqrs-org/Karabiner-Elements) to remap some keys.
I would like remap
- `backspace` to forward delete
- `option` + `backspace` to backward delete
To do this I tried to write the following rule and place the `.json` file in `/Users/<username>/.config/karabiner/assets/complex_modifications`, but the rule does not even show up in rule selection window.
![rule selection window](https://powerusers.codidact.com/uploads/AcSoV2zjwWrEQBtyLxNxtFyz)
```
{
"title": "Swap backspace to forward delete",
"rules": [
{
"description": "Backspace to Forward Delete",
"manipulators": [
{
"type": "basic",
"from": {
"key_code": "delete_or_backspace",
},
"to": [
{
"key_code": "delete_forward"
}
]
}
]
},
{
"description": "Option + Backspace to Backspace",
"manipulators": [
{
"type": "basic",
"from": {
"key_code": "delete_or_backspace",
"modifiers": {
"mandatory":[
"option"
]
}
},
"to": [
{
"key_code": "delete_backwards"
}
]
}
]
}
]
}
```
Is there any syntax error in my rule or why doesn't it show up in the rule window?

#1: Initial revision by

samcarter‭ · 2021-08-30T15:33:58Z (over 3 years ago)

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Remapping backspace with Karabiner Elements

I'm using [Karabiner-Elements](https://github.com/pqrs-org/Karabiner-Elements) to remap some keys. 

I would like remap 

- `backspace` to forward delete

- `option` + `backspace` to backward delete

To do this I tried to write the following rule and place the `.json` file in `/Users/<username>/.config/karabiner/assets/complex_modifications`, but the rule does not even show up in rule selection window. 

![rule selection window](https://powerusers.codidact.com/uploads/AcSoV2zjwWrEQBtyLxNxtFyz)

```
{
  "title": "Swap backspace to forward delete",
  "rules": [
    {
      "description": "Backspace to Forward Delete",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "key_code": "delete_or_backspace",
          },
          "to": [
            {
              "key_code": "delete_forward"
            }
          ]
        }
      ]
    },
    {
      "description": "Option + Backspace to Backspace",
      "manipulators": [
        {
          "type": "basic",
          "from": {
            "key_code": "delete_or_backspace",
            "modifiers": {
              "mandatory":[
                "option"
              ]
            }            
          },
          "to": [
            {
              "key_code": "delete_backwards"
            }
          ]
        }
      ]
    }
  ]
}
```

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