Switch collider to capsule colllider

I was wondering if there was a way to change the collider from a box collider to a capsule or a circle collider so the floor can have cool variations. I tried already to put the capsule collider but the script somehow overwrites it and uses the box collider. I would be very grateful if you could help me! I can even give you a personalized drawing !!!

Jorge Ferretiz

Playstorm Studios