VSCode Split/Join editors to the Left/Right

keybindings.json

[
  {
    "key": "cmd+k cmd+right",
    "command": "macros.editorSplitRight"
  },
  {
    "key": "cmd+k cmd+left",
    "command": "macros.editorSplitLeft"
  },
  {
    "key": "cmd+k shift+cmd+right",
    "command": "macros.editorCloseRight"
  },
  {
    "key": "cmd+k shift+cmd+left",
    "command": "macros.editorCloseLeft"
  }
]

settings.json

{
  "macros": {
    "editorSplitRight": [
      "workbench.action.moveEditorToNextGroup",
      "workbench.action.moveActiveEditorGroupLeft",
    ],
    "editorSplitLeft": [
      "workbench.action.moveEditorToNextGroup",
    ],
    "editorCloseRight": [
      "workbench.action.joinTwoGroups",
    ],
    "editorCloseLeft": [
      "workbench.action.focusPreviousGroup",
      "workbench.action.joinTwoGroups",
      "workbench.files.action.openPreviousWorkingFile",
    ],
  },
  "workbench.editor.closeEmptyGroups": false,
}

Requires the macros extension: https://marketplace.visualstudio.com/items?itemName=geddski.macros