Applied all the changes and it actually all worked. Woo-hoo!!
No only that, but now all the functions show up in teh graph editor. This is a huge relief.
Next, I promoted the blueprints demos to the base class, and it all works as expected,
I updated the download, in case you want to check again. 
In case you wonder what is this plugin all about.
Basically I am integration the NewtonDynamics Physics library to unreal so that it can be used unreal and a high end powerful editor with powerful graphics, to quickly prototype contractions of rigids and joints and test it in real time. Stuff like robots and vehicles.
The focus is one accuracy and realism, at least real life plausibility, therefore, is will have a small scope of applications.
at least that the idea.
again, thank man