Need help changing led strip animation while button is pressed

Hey, I need with a little project, that I need to do on tinkercad (i dont access to the real life thing cause pandemic). Basically i need a neopixel ledstrip to switch animation while a button is being pressed.
I just cant figure it out.

This is my tinkercad sketch

This is the effect I've been using

Thanks to everything that decides to help :slight_smile: