Adding models/content to the HelixViewport3D in Helix 3D Toolkit

I thought I would drop this in here for others too if I get a solution. I asked over on Stackoverflow, hopefully someone will be able to help with what is probably a simple problem.

I figured some of us are not so advanced and may well encounter the same, or I am just an idiot !

http://stackoverflow.com/questions/20386519/adding-models-content-to-the-helixviewport3d-in-helix-3d-toolkit

After some experimenting I found a solution, I left the answer over on Stackoverflow.