about shapes generator ，can•t make shapes bounce

[M25]

Hello. everyone. I have a problem it confused me.I need ask to you guys. why? like Key frame shapes or shapes generator can't bounce shapes. just like dimmer pulse 3:1 or color 1 step up these effect how make it bounce，i think if there is a solution to the problem. i don't do to much chases finish my shapes. thank every help！