moai.DoMethod(id, "Insert", obj, pred)
obj to the group
object specified by id. The detached object will be added after the child specified
by pred. After this method returns the specified object will change its state from
detached to attached. That is why you must no longer use functions that expect a
detached object with this object now.
Before you can call this method, you have to put the group into a special state that allows the addition and removal of children. This can be done by running the Group.InitChange and Group.ExitChange methods on the respective group object.
Detached MOAI objects can be created either by calling the moai.CreateObject() function or by explicitly detaching them from their parent by using the Group.Remove method.