Call Script Extension runtime object methods directly from a test item

I'm not entirely expecting this one to go very far... but...

The architecture of the automated framework that I'm currently building has the majority of the code to be executed "hidden" in Script extensions. This makes it so that I can implement the framework in any project without having to worry about including a lot of code units.

HOWEVER... the framework still needs to have at least one method called from a Keyword operation or a Script code unit in order to fire off the test run... 

I would LOVE to be able to create a Test Item in Project -> Test Items that I can link the test item DIRECTLY to such a method without having to create the trivial code unit or keyword test.  Would make script extensions as an architecture framework that much more cooler...