cinema4d – “Segments” option missing in Cinema 4D when adding subdivision surface modifier

I’m having a very annoying problem with Cinema 4D. I was following a tutorial step-by-step, and I was only four minutes in when I ran into a problem. The person in the video added a subdivision surface modifier then demonstrated how to change the number of segments on the Y-value of the object, but when I go to the object properties panel, I have no option to change the number of segments. I also noticed that mine is a polygon object while his is a cube, and I don’t know what I did wrong or how to change it back.