Adding function to namespace/module from another f

问题:

I ma writing custom editor for slickgrid.

slick.editors.js

/***
 * Contains basic SlickGrid editors.
 * @module Editors
 * @namespace Slick
 */

(function ($) {
  // register namespace
  $.extend(true, window, {
    "Slick": {
      "Editors": {
        "Text": TextEditor,
        "Integer": IntegerEditor,
        "Float": FloatEditor,
        "Date": DateEditor,
        "YesNoSelect": YesNoSelectEditor,
        "Checkbox": CheckboxEditor,
        "PercentComplete": PercentCompleteEditor,
        "LongText": LongTextEditor
      }
    }
  });

  function TextEditor(args) {
    var $input;
    var defaultValue;
    var scope = this;
.
.
.
})(jQuery);

The function can be called under namespace import { Editors } from 'slickgrid-es6'; Editors.TextEditor()

Now I want to add here myTextEditor(args) function, but not altering slick.editors.js file.

in myText.js the function is written like this below

var myTextEditor = function MyTextEditor(args) {
  var $input;
  var defaultValue;
  var scope = this;

then I want to add this under Slick namespace in Editors module. so that I can call Editors.myTextEditor()

Is it possible??