controller folder structure question

[eluser]dpgtfc[/eluser]
Hello,

I'm wondering if it is possible to organize my controllers into sub directories. If I have 20 of them, and they can be grouped into some sort of functionality, is there a way to put them into separate sub-directories of the application/controller folder?

I do this with my models, my libraries and my views, but I don't know if it would work with controllers. Would CI look for them automatically, or would I have to change some settings?

Thanks in advance,

Daniel