Thanks, I think I have this working now. However, even though it works, it doesn't seem to do quite what I need. The Cmd ' seems to fold the output cell, but not the input cell. What I am hoping is that there is a way to do something like this.
Given a function such as:
myFunction[x_] := Module[
function;
function];
I am hoping there is a way to collapse the cell so that it looks like
myFunction[x_] ...
That would let me see the signatures of all my functions without having to scroll through a whole bunch of code.
Of course, the sections and sub-sections might be the way to achieve what I am looking for, but perhaps there is something like this built into the notebook interface?