VS Code -- Caps Lock to Backspace

keybindings.json

// Place your key bindings in this file to overwrite the defaults
[
    {
        "key": "capslock",
        "command": "replacePreviousChar",
        "args": {
            "text": "",
            "replaceCharCnt": 1},
        "when": "editorTextFocus"
    }
]

It's good, but not perfect. Do you know how to remove a text that has been selected?

Edit:

[
    {
        "key": "capslock",
        "command": "deleteLeft",
        "when": "editorTextFocus && !editorReadonly" 
    }
]

Hmm this maps to deleteLeft ... in the editor only, that's nice :- )
and I'm wondering, is there no way to map it to Backspace, always, in each and every situation.

(I'm using Vim mode & Colemak, so caps-lock/backspace could be useful in many many more cases)

Edit 1 month later, this works fine this far, with VSCode and Vim and Colemak:

        "key": "capslock",
        "command": "extension.vim_backspace",
        "when": "editorTextFocus && vim.active && !inDebugRepl"