Wow, thank yo so much @jed @HappyPolygon! Perfect setup. Everything works fine, and we can change the radius of the spheres and shrinking speed. Thanks a lot! I have only one additional question, I understand that everything works around radius and this will not work with other objects in the cloner. Is it possible to make somehow the objects inside the spheres also shrink up? Or, in some other way, to use any instances in cloner. Thanks!