Initializer.js

define([
     "dojo",
    'dojo/_base/declare',
    'epi-cms/plugin-area/navigation-tree',
    // Parent class
    'epi/_Module',
    // Commands
    'alloy/ReloadChildren/ReloadChildren'
], function (
   // Dojo
    dojo,
    declare,

    navigationTreePluginArea,
    // Parent class
    _Module,
    // Commands
    ReloadChildren
) {
 
    return declare([_Module], {
 
        initialize: function () {
            this.inherited(arguments);
            navigationTreePluginArea.add(ReloadChildren);
        }
    });
});

module.config

<?xml version="1.0" encoding="utf-8"?>
<module>
    <assemblies>
	     <!--This adds the Alloy template assembly to the "default module"--> 
        <add assembly="EpiserverSite1" />
    </assemblies>
    <clientResources>
        <add name="epi-cms.widgets.base" path="Styles/Styles.css" resourceType="Style"/>
    </clientResources>
    <dojo>
         <!--Add a mapping from alloy to ~/ClientResources/Scripts to the dojo loader configuration--> 
        <paths>
            <add name="alloy" path="Scripts" />
        </paths>
    </dojo>

  <clientModule initializer="alloy.Initializer">
    <moduleDependencies>
      <add dependency="CMS" type="RunAfter" />
    </moduleDependencies>
  </clientModule>
</module>

ReloadChildren.js

define([
    "dojo/topic",
    "dojo/_base/declare",
    "epi/dependency",
    "epi/shell/command/_Command"
], function (topic, declare, dependency, _Command) {

    return declare([_Command], {

        label: "Reload Children",

        iconClass: "epi-iconReload",

        constructor: function () {
         
            // summary:
            //        Constructs the object and sets up a reference to the content data store.
            // tags:
            //        public
            
            var registry = dependency.resolve("epi.storeregistry");
            this.store = registry.get("epi.cms.contentdata");
        },

        _execute: function () {
           
            // summary:
            //        Executes this command assuming canExecute has been checked.
            // tags:
            //        protected
            //debugger;
            var model = this.model;
            topic.publish("/epi/cms/contentdata/childrenchanged", this.model);
          //  model.isCommonDraft = true;

           // return this.store.put(model);
        },

        _onModelChange: function () {
          
            // summary:
            //        Updates canExecute after the model has been updated.
            // tags:
            //        protected
            //debugger;
            //var model = this.model,
            //    canExecute = model && !model.isCommonDraft;

            this.set("canExecute", true);
        }
    });
});