I was working on a program I am building when I noticed that the option to collapse (or fold, I think is what its called in matlab?) was missing. I opened up an older m-file I worked on and it still has the option. I provided a link to a screenshot of the 2 side by side. The code on the left is the one I am having the problem with, and the one on the right has the "+" and "-" boxes to expand or collapse statements like I want.