I am attempting to create an animated particle that is an instance of a group that is created with nodes. I have been able to successfully add instanced objects to a group. While this is working fine, it is removing the objects from the group once the instance count has been reduced seems to be the only sticking point. I have tried unlinking every object in the group, from it that is beyond the index value of the instances, how ever i can not get it to remove all objects from the group or i can not get it to add all instances too the group. Can any one point me to a method that can add all objects and remove them all as well as simply as possible?