extensionContextMenuArray object

{
  "requirements": {
    "capabilities": [
      {
        capabilities object
      }
    ],
    "scopes": [
      "mail | workbook | document | presentation"
    ],
    "formFactors": [
      "desktop | mobile"
    ]
  },
  "menus": [
    {
      "entryPoint": "text | cell",
      "controls": [
        {
          extensionCommonCustomGroupControlsItem object
        }
      ]
    }
  ]
}

{
  "type": "object",
  "properties": {
    "requirements": {
      "type": "object",
      "$ref": "#/definitions/requirementsExtensionElement"
    },
    "menus": {
      "$ref": "#/definitions/extensionMenuItem",
      "description": "Configures the context menus. Minimum size is 1."
    }
  },
  "additionalProperties": false,
  "required": [
    "menus"
  ]
}