[NTG-context] Project file structure

Hi all! I know that ConTeXt looks for files *higher*in the directory tree when it doesn't find them. But is there a way to tell ConTeXt to specifically look for files lower in the tree? One of my project - a dictionary - will involve thousands of component files, as the best way to manage its production is to keep every entry in an individual component file. But I'm a sucker for orderly and clean directories. I'd really like to group all my stuff into several subdirectories, below my main file. :-) Is it possible, or am I grasping at straws here? Thanks! Jeff