Timeline 3D interface to Email

Sometimes a project takes a while. And there are long intervals of working on details but you really want to see ALL the emails associated with a project. I use Mac Mail for my email client and it has a function called Smart Folders. This allows you to define filters to winnow things down to just the subject matter that you want to see. But, when it is all said and done, there is usually a bit of TMI (Too Much Information). I wanted to be able to: