Do you mean interaction between objects? like show falling and forming show hills?

I am sorry you are not satisfied with the new updates. We put all of our effort into creating a new powerful particle tool set. It requires a lot of work and adding many small details that may look “boring”. However, I believe the result will give you a powerful and handy particle effect constructor. 

Last releases consist of additional options for constructor, but not one solid animation. A short video preview would not show the changes effectively.