API: add multiple products to product group at once

We would like to have an API call, similar to "Product/ProductGroupFilter", where we can add multiple products to a product group at once.

Ideally a POST call, where the body could be something like:

[

  "productGroupName": "demo",

  "productGroupFilter" :

    [

      {

      "partNumber": "abc",

      "revision": null,

      "exclude": false

    },

    {

      "partNumber": "abc",

      "revision": null,

      "exclude": false

    }

]