Note that you could use cells in order to fold chunks of code you don’t want to see. While this isn’t the selection based folding your asking for, it is a reasonable workaround. To fold a block of code, you could insert cell markers like this:

%% cell start
% code to fold
%% cell end

-Ken

Whether or not it’s considered “dirty” or “sloppy” programming style, I like programming in a certain way, and I’m the only one using my programs, so I should be allowed to do what I want!

In Maple I can hide whatever I want, why not in MATLAB ??

We decided that an if block including all it’s elseif and else statements is a single logical entity, and should be folded as such. To get the behavior you’re after, I’d encourage you to break out the internals of your if/elseblocks into sub-functions or inner functions, each of which are foldable.

-Ken

Thats an interesting idea, one also present in Xcode via the #pragma mark token. There’s a school of thought that says you shouldn’t dirty your code in an effort to accommodate your IDE (check out Jeff Atwood’s article on code folding), though I’m not quite sure where I stand on the issue yet. I will submit an enhancement request though!

-Ken

how about introducing the “region” concept as used in the Visual Studio Environment?
This enables the user to introduce his own “folding blocks”.

For more info please look at
http://msdn.microsoft.com/en-us/library/9a1ybwek(VS.71).aspx