Would it be in idea to create subprojects within a larger projects, so when closing a subproject a "black box" appears with its description. It could give a more arranged sight at your project, I suppose.
Well, I mean a subproject which can be "collapsed" unto a kind of "black box", so the overall view could be simplified while working on the (larger) project.
It's not meant as black box, but as a simplified presentation of a more complex part of a project.
So a project could be built up from more subprojects. When finishing a subproject you could collapse it into a format with less details.