You can now pass a Group config into the Factory / constructor.

Author: photonstorm

v3/src/gameobjects/group/Group.js

@@ -10,13 +10,18 @@ var Group = new Class({
 
     initialize:
 
-    function Group (state, children)
+    function Group (state, children, config)
     {
         this.state = state;
 
         this.children = new Set(children);
 
         this.classType = Sprite;
+
+        if (config)
+        {
+            this.createMultiple(config);
+        }
     },
 
     update: function (time, delta)

v3/src/gameobjects/group/GroupFactory.js

@@ -5,18 +5,14 @@ var GroupFactory = {
 
     KEY: 'group',
 
-    add: function (children)
+    add: function (children, config)
     {
-        return new Group(this.state, children);
+        return new Group(this.state, children, config);
     },
 
     make: function (config)
     {
-        var group = new Group(this.state);
-
-        group.createFromConfig(config);
-
-        return group;
+        return new Group(this.state, null, config);
     }
 
 };